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11. 发明专利

JPH1186174A AUTOMATIC RADIO METER READING DEVICE 失效
公开(公告)号：JPH1186174A
公开(公告)日：1999-03-30
申请号：JP23872997
申请日：1997-09-03
申请人： TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK , FUJI ELECTRIC CO LTD , TOSHIBA CORP
发明人： SUZUKI MAMORU , ISHIKAWA KIYOHISA , FUJIWARA JUN , YASUI MASAHIRO , ICHIHASHI TATSUYA , KONDO SHIRO , KAWASAKI KIKUO , SATO TOMONORI , KAWAI TOSHIHIKO , OKI TETSUYA , SEKINE SHUICHI
IPC分类号： G08C17/00 , H01Q1/22
摘要： PROBLEM TO BE SOLVED: To provide an automatic radio water reading device, which improves the radiation characteristic and directivity of an antenna without being affected by metal plates, or the like, of a gas meter. SOLUTION: An inverted linear F antenna 45 is used as an antenna in a radio equipment housing 43, that is installed at a lower part of a metal plate 27 between gas piping 5 and 7 at an upper part of a gas meter metallic housing 3, the antenna 45 is arranged so as to avoid itself from the plate 27, also an antenna ground plate 51 of the antenna 45 and a radio circuit ground plate 49 of a radio circuit are arranged so that they are separated from each other, connected at one point, high-frequency bonding strength of both is weakened, the high frequency bonding of a ground of the antenna 45 and of the housing 3 is strengthened, and an antenna radiation characteristic that has high radiation gain is attained.

12. 发明专利

JPH07307163A LOAD CONTROL DEVICE OF FUEL CELL POWER GENERATING SYSTEM 失效
公开(公告)号：JPH07307163A
公开(公告)日：1995-11-21
申请号：JP9939794
申请日：1994-05-13
申请人： TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK , FUJI ELECTRIC CO LTD
发明人： IKEDA GENICHI , IWASA NOBUHIRO , ICHIHASHI TATSUYA , KOMATSU TADASHI
IPC分类号： H01M8/04
摘要： PURPOSE:To prevent the lack of gas and safely operate a fuel cell power generation system without excess supply of a reaction gas and correction of a reaction gas flow rate by installing a current increasing/decreasing instruction means, a reaction gas flow rate control means, a delay setting means, and a load control means. CONSTITUTION:A current increasing/decreasing instruction means 10 converts the variation of a set value of a load setting device 11 into an adding current signal and a subtracting current signal which indicate a certain increasing/decreasing speed of the output d.c. current of a fuel cell, then outputs the converted signals. This signal is utilized as a raw fuel and output d.c. current increasing/decreasing instruction means. A reaction gas (raw fuel) flow rate control means 20 computes a reaction gas set flow rate QS from the adding current signal, a d.c. current detecting value Id and a conversion factor previously obtained, and controls a reaction gas flow rate by a control valve 5 so that a detected flow rate Qf becomes equal to the flow rate QS. A set current value IS is updated through a delay set device 30 and a load control means 40, and the output a.c. power P of a D/A converter 4 is controlled so as to bring the value Id close to the value IS. The lack of gas is prevented and power generating operation is stabilized.

13. 发明专利

JPH06333587A METHOD AND DEVICE FOR CONTROLLING COMBUSTION AIR QUANTITY OF FUEL CELL FUEL OFF GAS 失效
公开(公告)号：JPH06333587A
公开(公告)日：1994-12-02
申请号：JP11747493
申请日：1993-05-20
申请人： TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK , FUJI ELECTRIC CO LTD
发明人： IKEDA GENICHI , IWASA NOBUHIRO , ICHIHASHI TATSUYA , KOMATSU TADASHI
IPC分类号： H01M8/06
摘要： PURPOSE:To provide a method for controlling the combustion air quantity of a fuel off gas for controlling the combustion air quantity allowing the stable combustion of the fuel cell off gas even when the composition of a raw fuel supplied to a fuel reformer, the flow rate ratio to a load current, and the reforming condition of the fuel reformer are changed. CONSTITUTION:The difference between the air quantity including the oxygen quantity necessary for combusting the raw fuel flow rate detected by a raw fuel flow rate detector 12, considering the time delay T until it reaches a fuel cell 1 through a fuel reformer 5 in a control device 30, and the air quantity including the oxygen quantity consumed in the battery reaction necessary for the load current detected by a current detector 25 corresponds to the combustion air quantity necessary for combusting a fuel off gas by a burner 8. Thus, the total air quantity obtained by multiplying the combustion air quantity by an air-fuel ratio is inputted as a target value to a combustion air quantity controller 32, and the combustion air quantity is controlled by the rotating speed control of a blower 18.

14. 发明专利

JPH08293313A FUEL CELL GENERATING DEVICE 失效
公开(公告)号：JPH08293313A
公开(公告)日：1996-11-05
申请号：JP9573395
申请日：1995-04-21
申请人： TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK , FUJI ELECTRIC CO LTD
发明人： IKEDA GENICHI , IWASA NOBUHIRO , ICHIHASHI TATSUYA , HIRASAWA TEIJI
IPC分类号： H01M8/04
摘要： PURPOSE: To easily and stably release a silicon compound accumulated in a steam separator by performing the blowdown of a fuel cell cooling water in the steam separator with fixed period, releasing time and water quantity to intermittently release it to the outside. CONSTITUTION: A cell cooling water 5 is circulated from a steam separator 13 to the cooling plate 3 of a fuel cell 1 consisting of a plurality of unit cells by a pump 12, cooled by a heat exchanger 11, and returned to the steam separator 13. The recovered water 9 of generated water in the air off gas 5 of an air electrode and the combustion exhaust gas 7 of a reforming device 2 is received through a water treatment system 20. A reformed steam 15 generated there is supplied to the reforming device 2 together with raw fuel, and the generated fuel gas is supplied to a fuel electrode. In the above fuel cell generating device, a blowdown device 30 consisting of a solenoid valve 32 and a timer circuit 33 is connected to the blowdown piping 31 of the steam separator 13, and the cell cooling water 5 in the device is intermittently released to the outside as a blowdown water 39.

15. 发明专利

JPH0963612A WATER-COOLED FUEL CELL POWER GENERATING APPARATUS 失效
公开(公告)号：JPH0963612A
公开(公告)日：1997-03-07
申请号：JP21030595
申请日：1995-08-18
申请人： TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK , FUJI ELECTRIC CO LTD
发明人： IKEDA GENICHI , IWASA NOBUHIRO , ICHIHASHI TATSUYA , MURAKAMI TAKASHI
IPC分类号： H01M8/04
摘要： PROBLEM TO BE SOLVED: To provide a water-cooled fuel cell power generating apparatus in which microbe propagation can be prevented without requiring complicated maintenance work such as washing of a produced water recovering system and a water treating system with chemicals. SOLUTION: A fuel cell 1 consisting of layered bodies of a plurality of unit cells and cooling plates 3 is provided with a cooling water circulating system 10 to circulate cooling water 6 to cooling pipes in the cooling plates, a produced water recovering system 20 which condenses steam in waste gases 7, 8 of the fuel cell and a fuel reforming apparatus 2 to recover as water, mixes the water with tap water to give mixed water 26, and store the mixed water 26, and a water treating system 30 which converts the mixed water into pure water 26P and supplies to the cooling water circulating system 10. An ultraviolet sterilization apparatus 41 to sterilize microbes in the mixed water 26 by irradiation of ultraviolet rays is installed in a mixed water flowing route, or the ultraviolet sterilization apparatus 41 and an antibacterial filter 42 are installed at mutually different positions in the mixed water flowing route.

16. 发明专利

JPH11243315A ANTENNA DEVICE 失效
公开(公告)号：JPH11243315A
公开(公告)日：1999-09-07
申请号：JP4324698
申请日：1998-02-25
申请人： TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK , FUJI ELECTRIC CO LTD
发明人： NUKUI KAZUMITSU , SUZUKI MAMORU , ISHIKAWA KIYOHISA , FUJIWARA JUN , MATSUSHITA HIROSHI , YASUI MASAHIRO , ICHIHASHI TATSUYA , NAKATO YOSHIJI
IPC分类号： H01Q23/00 , H01Q1/24 , H01Q13/08
摘要： PROBLEM TO BE SOLVED: To secure the size of an antenna plane, also sufficiently secure the size of a metallic board comparing with the size of the antenna plane and also to avoid an ambient metallic influence on radiated radio waves by arranging an antenna element obliquely with respect to a housing storing a radio device. SOLUTION: A conductive housing 1 has a hexahedral shape whose bottom is opened and one conductive plane 1a that constitutes the housing 1 is tilted obliquely with respect to the other plane. An inclination angle θ of the plane 1a against the housing 1 sets an antenna plane 10 and the angle θ of the plane 1a so that a metallic body, dielectric or a magnetic body other than what forms an antenna device can not exist in an area side that includes the plane 10 between two space areas which are divided by virtually and limitlessly extending the plane 10. Thus, it is possible to transmit radio waves while reducing the influence of ambient metallic pipe arrangement even when the antenna device is installed in limited space around a gas meter, etc.

17. 发明专利

JPH09306523A WATER COOLED FUEL CELL POWER GENERATING SYSTEM 失效
公开(公告)号：JPH09306523A
公开(公告)日：1997-11-28
申请号：JP11287996
申请日：1996-05-08
申请人： TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK , FUJI ELECTRIC CO LTD
发明人： IKEDA GENICHI , IWASA NOBUHIRO , ICHIHASHI TATSUYA , OUCHI TAKASHI , MIYAMA HARUMI , FUJII MASATAKA
IPC分类号： C02F1/42 , C02F1/02 , C02F9/00 , H01M8/04
摘要： PROBLEM TO BE SOLVED: To avoid the feed of microbes into a mixer water tank and stabilize the operation by arranging a replenishing water line having a sterilizing means in which replenishing water is converted into pure water or strong acidic water, then supplied to the mixer water tank. SOLUTION: A sterilizing means 24 in which replenishing water is converted into pure water or strong acidic water, then supplied to a mixer water tank 22 is arranged in a replenishing water line 23 through which the replenishing water is supplied to the mixer water tank 22 and water balance is held. As the sterilizing means 24, an ion exchange water treating device is suitable, and when the replenishing water is changed into pure water, the mixing bed of a cation exchanger and an anion exchanger is used as an ion exchanger. When the replenishing water in converted into strong acidic water, only the cation exchanger is used as the ion exchanger. The feed of microbes into the mixer water tank 22 from the replenishing water line 23 in prevented, and at the same time, salts which become a metabolism of the microbe are removed, and thereby, the propagation of the microbe in the mixer water tank 22 is prevented.

18. 发明专利

JPH0963611A WATER-COOLED FUEL CELL POWER GENERATING APPARATUS 失效
公开(公告)号：JPH0963611A
公开(公告)日：1997-03-07
申请号：JP21030495
申请日：1995-08-18
申请人： TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK , FUJI ELECTRIC CO LTD
发明人： IKEDA GENICHI , IWASA NOBUHIRO , ICHIHASHI TATSUYA , MATSUDA HARUKI , MURAKAMI TAKASHI
IPC分类号： H01M8/04
摘要： PROBLEM TO BE SOLVED: To provide a water-cooled fuel cell power generating apparatus in which microbe propagation can be prevented without requiring complicated maintenance work such as washing of a produced water recovering system and a water treating system with chemicals. SOLUTION: A fuel cell 1 consisting of layered bodies of a plurality of unit cells and cooling plates 3 is provided with a cooling water circulating system 10 to circulate cooling water 6 to cooling pipes in the cooling plates, a produced water recovering system 20 which condenses steam in waste gases 7, 8 of the fuel cell and a fuel reforming apparatus 2 to recover as water, mixes the water with tap water to give mixed water 26, and store the mixed water 26, and a water treating system 30 which converts the mixed water into pure water 26P and supplies to the cooling water circulating system 10. As an antibacterial filter 40 to inhibit propagation of microbes in the mixed water 26, tanks 41, 42 filled with granular adsorbents bearing antibacterial metal films on the surface are installed in an upper stream side of a mixed water circulating system 25 in the produced water recovering system or of an ion-exchange type pure water producing apparatus 31 in the water treating system 30.

19. 发明专利

JP2000308155A PORTABLE RADIO EQUIPMENT 失效
公开(公告)号：JP2000308155A
公开(公告)日：2000-11-02
申请号：JP11657399
申请日：1999-04-23
申请人： TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK
发明人： ISHIKAWA KIYOHISA , YOKOYAMA MUTSUTO , YASUI MASAHIRO , ICHIHASHI TATSUYA
IPC分类号： H04Q9/00 , H04B7/24
摘要： PROBLEM TO BE SOLVED: To provide portable radio equipment capable of displaying remaining communication time and communication contents. SOLUTION: When the timeout time of communication sequences 301, 302 and 303 is respectively defined as 30 sec, 10 sec and 10 sec, a total sum S of timeout time is 50 sec. The reference value of remaining time is defined as 50 sec and picture display is performed for the remaining time of 50 sec at the time of communication start (311). Portable radio equipment 3 calls a wireless handset 5. When calling is received, the wireless handset 5 transmits a telegraphic activation message to a meter 7. When the telegraphic activation message is received, the meter 7 transmits a telegraphic response message through the wireless handset 5 to the portable radio equipment 3 (301). Then, the remaining time is displayed second by second like '50 sec', '49 sec'.... In this case, when the real communication time of the communication sequence 301 is 25 sec, at this time point, the total of the timeout time of the communication sequences 302 and 303 is defined as remaining time. Therefore, 25 sec is displayed as remaining time (312) and in the next moment, 20 sec is displayed as remaining time (313). Afterwards, similar display is performed in the communication sequences 302 and 303 as well.

20. 发明专利

JP2001036977A INFORMATION TRANSMITTING AND RECEIVING SYSTEM AND INFORMATION TRANSMISSION REQUESTING DEVICE AND PROGRAM RECORDING MEDIUM 失效
公开(公告)号：JP2001036977A
公开(公告)日：2001-02-09
申请号：JP20506699
申请日：1999-07-19
申请人： OSAKA GAS CO LTD , TOKYO GAS CO LTD , TOHO GAS KK
发明人： YASUI MASAHIRO , FUJII YASUHIRO , ISHIKAWA KIYOHISA , YOKOYAMA MUTSUTO , ICHIHASHI TATSUYA
IPC分类号： H04Q9/00 , H04B7/26 , H04M11/00
摘要： PROBLEM TO BE SOLVED: To provide an information transmission requesting device for transmitting a request for transmission for the transmission of information with information for designating a reponse timing capable of responding to the request for transmission by radio waves, and for actively transmitting the request for transmission again when the information can not be received in the designated reponse timing. SOLUTION: A radio wave using type meter-reading device 1 is provided with a transmitting and receiving means 7 for transmitting a request for transmission for the transmission of gas usage and the identifiers of whole radio wave using type gas meters being the objects of the request for transmission in a batch by using radio waves, and for receiving the pair of the gas usage and the identifier in each response timing corresponding to each radio wave using type gas meter and a judging means 8 for judging whether or not the pairs of the gas usage and identifiers of the whole radio wave using type gas meters are received by the transmitting and receiving means 7. When the judged result of the judging means 8 is negative, the transmitting and receiving means 7 is allowed to re-transmit the request for transmission and the identifiers which can not be received by the transmitting and receiving means 7 by using radio waves.

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