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1. 发明专利

JPH11209121A CONCENTRATING AND CRYSTALLIZING DEVICE OF MINERAL COMPONENT 失效
公开(公告)号：JPH11209121A
公开(公告)日：1999-08-03
申请号：JP1228298
申请日：1998-01-26
申请人： HITACHI LTD , NITTA KEIJI , ASHIDA AKIRA
发明人： YOSHIOKA CHIKAKO , KUROKAWA HIDEAKI , SUGAWARA SATOSHI , HAYASHI KYOSUKE , NITTA KEIJI , ASHIDA AKIRA
IPC分类号： B01D9/02 , C01D3/04
摘要： PROBLEM TO BE SOLVED: To separately recover high purity NaCl and KCl. SOLUTION: A soln. 11 containing NaCl, KCl and hardly-soluble impurities such as Ca , Mg , SO4 and PO4 is heated in a high temp. crystallization tank 101 to precipitate NaCl and hardly-soluble impurities. The precipitate is separated by a filter 103. The concentrated liquid 14 containing KCl is cooled in a low temp. crystallization tank 301 to precipitate KCl. The precipitated KCl is separated and recovered by a filter 302. The water supplied to the filter 103 dissolves NaCl to recover it and the water is heated in a high temp. crystallization tank 201. The precipitated NaCl is separated by a filter 203 and recovered. Since NaCl and hardly-soluble impurities are separated from the soln. 11 and then NaCl is separated from the hardly-soluble impurities, high purity NaCl and KCl can be separately recovered.

2. 发明专利

JPS5885657A DATA TRANSMITTING SYSTEM 失效
公开(公告)号：JPS5885657A
公开(公告)日：1983-05-23
申请号：JP18381681
申请日：1981-11-18
申请人： HITACHI LTD
发明人： ASHIDA AKIRA
IPC分类号： H03M5/12 , H04L25/49
摘要： PURPOSE:To transmit intermittent and continuous data by one cable, by obtaining a read timing from the head bit added by the transmitting side, of a serial data transmitted through one transmission cable from the transmitting side. CONSTITUTION:That which had added information 1 to a parallel data input 10 is inputted to a prallel/serial converting circuit 11, and ''1'' and ''0'' of an obtained serial data are made wide and narrow in width, respectively, and the pulse width is modulated. Subsequently, an obtained data is transmitted through one transmission cable from an output terminal 20. In the receiving side, a serial data (i) inputted from a terminal 35 is inputted to a terminal D of a shift register 22, and also is inputted to a clock terminal T through a delaying circuit 21. As a result, from output terminals Q1-Q8, a parallel data is outputted in reverse order. Also, by the head bit information 1 added by the transmitting side, which has been outputted to a terminal Q9, a one shot circuit 23 is started. An output (k) of this circuit 23 and the outputs Q1-Q8 of the register 22 are inputted to AND circuits 25-32, and a parallel data 33 is obtained.

3. 发明专利

JPS51140407A LIGHT COMMUNICATION MONITORING SYSTEM 失效
公开(公告)号：JPS51140407A
公开(公告)日：1976-12-03
申请号：JP6420775
申请日：1975-05-30
申请人： TOKYO ELECTRIC POWER CO , HITACHI LTD
发明人： AZUMA YOSHIYUKI , MOTOMURA YOSHIHISA , OOTA KOUICHI , ASHIDA AKIRA
IPC分类号： H04B10/07 , H04B10/073 , H04B10/077 , H04B10/079 , H04B10/29 , H04B17/40
摘要： PURPOSE:To monitor by effectively utilizing usable part of an obstruction channel.

4. 发明专利

JPH0630793B2 失效
公开(公告)号：JPH0630793B2
公开(公告)日：1994-04-27
申请号：JP15823585
申请日：1985-07-19
申请人： HITACHI LTD
发明人： EBARA KATSUYA , YAMADA AKIRA , KOSEKI YASUO , KUROKAWA HIDEAKI , TAKAHASHI SANKICHI , ASHIDA AKIRA
IPC分类号： C02F1/28 , B01D61/36 , C02F1/44 , C02F9/00

5. 发明专利

JPS6219299A WATER CIRCULATING SYSTEM 失效
公开(公告)号：JPS6219299A
公开(公告)日：1987-01-28
申请号：JP15823585
申请日：1985-07-19
申请人： HITACHI LTD
发明人： EBARA KATSUYA , YAMADA AKIRA , KOSEKI YASUO , KUROKAWA HIDEAKI , TAKAHASHI SANKICHI , ASHIDA AKIRA
IPC分类号： C02F1/28 , B01D61/36 , C02F1/44 , C02F9/00
摘要： PURPOSE:To purify water and to use the purified water as drinking water, domestic water, cultivation water, etc., by treating the waste water generated from breeding and cultivating devices, etc., in the closed system of a spacecraft, etc., with an org. material removing apparatus using activated carbon, etc., and then treating the water with a hydrophobic porous membrane. CONSTITUTION:Waste water generated from a human life and devices for breeding and cultivating animals and plants in the closed space of spacecrafts, submarines, etc., is treated with an org. material removing apparatus 2 using activated carbon, etc., and then treated with a hydrophobic porous membrane 3. Namely, since the org. material removing apparatus 2 using activated carbon, etc., is used in the pretreatment, the hydrophobicity of the hydrophobic porous membrane 3 is maintained and the operation is stabilized. Besides, since the waste water is treated with the hydrophobic porous membrane 3, the waste water can be purified by the two-stage operation, evaporation and membrane separation, and extremely pure water can be obtained with a compact apparatus. Consequently, the waste water such as shower water, night soil, soap water, plane cultivating waste water and breeding waste water is purified and the purified water can be used as drinking water, domestic water, cultivation water, etc.

6. 发明专利

JPS58186218A Logical noise rejection circuit 失效
标题翻译： LOGICAL NOISE REJECTION CIRCUIT
公开(公告)号：JPS58186218A
公开(公告)日：1983-10-31
申请号：JP6865482
申请日：1982-04-26
申请人： Hitachi Ltd
发明人： ASHIDA AKIRA
IPC分类号： H04L25/08 , H03K5/1252 , H03K21/02
CPC分类号： H03K5/1252
摘要： PURPOSE:To attain a logical noise rejection circuit with small size and high reliability which eliminates various logical noise, by forming the noise rejection circuit with a digital circuit easy for circuit integration. CONSTITUTION:An input data signal is inputted from an input terminal 1 to a differential circuit 2 to obtain a differentiation pulse to both leading and trailing of logical noise in the noise. Said pulse is inputted to a count circuit 4, which is reset at each differentiation pulse and an output is given when a high frequency clock having a period shorter than the pulse width of logical noise is counted for a specified number corresponding to the maximum pulse width of the logical noise. The leading of output is differentiated at a circuit 5, a shaped data signal of the same state as the input data signal is obtained from a shape circuit 6 at each production of the differentiation pulse.
摘要翻译：目的：通过形成具有容易进行电路集成的数字电路的噪声抑制电路，达到消除各种逻辑噪声的小尺寸和高可靠性的逻辑噪声抑制电路。构成：将输入数据信号从输入端子1输入到差分电路2，以获得噪声中的逻辑噪声的前导和后沿的微分脉冲。所述脉冲被输入到计数电路4，该计数电路4在每个微分脉冲时复位，并且当将具有比逻辑噪声的脉冲宽度更短的周期的高频时钟计数到对应于最大脉冲宽度的指定数量时，给出输出的逻辑噪声。输出的引导在电路5处不同，在每次产生微分脉冲时，从形状电路6获得与输入数据信号相同状态的成形数据信号。

7. 发明专利

JPS58129858A REGENERATING CIRCUIT OF CLOCK SIGNAL 失效
公开(公告)号：JPS58129858A
公开(公告)日：1983-08-03
申请号：JP1101482
申请日：1982-01-28
申请人： HITACHI LTD
发明人： ASHIDA AKIRA
IPC分类号： H04L7/02
摘要： PURPOSE:To lock the phase of the clock regeneration in early stage of data arriving intermittently by detecting the rate at which timing information is present within the prescribed phase shift range of a regenerated clock signal being less than a prescribed set value. CONSTITUTION:A phase detecting circuit 40 detects the rate at which timing information TM is out of phase with the regenerated clock signal RCK within a prescribed shift range being less than the prescribed set value and then outputs phase information on the timing information TM arriving thereafter as a reset signal RST. The reset signal RST is inputted to the reset terminal R of a digital phase locking circuit 20 through a gate circuit 30 to reset a counter, thereby locking the phase of the regenerated clock signal RCK to that of the reset signal RST.

8. 发明专利

JPS5226102A PRELIMINARIES TELEPHONE UNIT FOR OPTICAL COMMUNICATION 失效
公开(公告)号：JPS5226102A
公开(公告)日：1977-02-26
申请号：JP10217175
申请日：1975-08-25
申请人： TOKYO ELECTRIC POWER CO , HITACHI LTD
发明人： TAKEDA KEIICHI , AZUMA YOSHIYUKI , MOTOMURA YOSHIHISA , OOTA KOUICHI , ASHIDA AKIRA , MINAMI YUKIO
IPC分类号： H04B10/00 , H04B10/07 , H04B10/524
摘要： PURPOSE:By incorporating a clock for modulation, a telephone unit enabling preliminaries shall be obtained even in the case of an optical communication.

9. 发明专利

JPH068896A COSMOS SYNTHETIC ENERGY CONVERSION SYSTEM 失效
公开(公告)号：JPH068896A
公开(公告)日：1994-01-18
申请号：JP16909592
申请日：1992-06-26
申请人： NAT AEROSPACE LAB , NAT RES INST METALS , MIYAMOTO YOSHIO , HITACHI LTD
发明人： SHINNO MASAYUKI , WAKAMATSU YOSHIO , MORO AKIO , SHIODA KAZUMICHI , MIYAMOTO YOSHIO , CHIKAZAKI MITSUO , ASHIDA AKIRA , WADA YUKIHIKO
IPC分类号： B64G1/42 , B64G1/44 , B64G1/50 , F24J2/00 , H02J15/00
摘要： PURPOSE:To provide a cosmos synthetic energy conversion system for the shallow and deep cosmos spheres which is small-sized and lightweight and secures the high energy conversion efficiency. CONSTITUTION:The solar energy is utilized effectively and efficiently by arranging the light/electricity converters 3, 9, and 16 on the obverse surfaces and arranging the heat/electricity converters 4, 10 and 17 on the reverse surfaces of the concaved surface reflective mirrors 2, 8, and 15 for converging the solar beams to the heat collectors 5, 11, and 18 by the first-fourth power generation systems 1, 7, and 14, and the solar energy which is strong in the shallow cosmos is stored in the form of electricity and heat, and used as the energy source in the shadow part of the sun and in the deep cosmos. Since the hydrogen and oxygen of thrust generators 29 and 30 are generated through the electrolysis of water, the device can be made small-sized and lightweight, and the thrust is increased by heating hydrogen, and the efficiency of the heating of hydrogen and the heating of water in the electrolysis is increased through the direct heating by the heat of the heat collectors 6 and 19. A radioactive ray source 32 using the self-supplied energy source in the deep cosmos is mounted, and the radioactive rays radiated from the radioactive ray source 32 is converted to the thermal energy and electricity by the nuclear heat converters 33 and 35 and a thermal converter 37.

10. 发明专利

JPH01153902A THREE-DIMENSIONAL MEASURING INSTRUMENT 失效
公开(公告)号：JPH01153902A
公开(公告)日：1989-06-16
申请号：JP31189487
申请日：1987-12-11
申请人： HITACHI LTD
发明人： ASHIDA AKIRA , MOURI SHIYUNJI
IPC分类号： G01B5/00 , G01B5/008 , G01B5/20
摘要： PURPOSE:To easily move and to take three-dimensional measurements at the place of a body to be measured by assembling portable components at a specified place. CONSTITUTION:A surface plate 1 with a scale is set according to (x) and (y) coordinates of a specified coordinate system. It is reconditioned that the surface plate 1 is horizontal or nearly horizontal and the body to be measured is on the surface plate 1. Here, a dial gauge 2 is lifted on or nearby this surface plate 1. This gauge 2 is brought into contact with a point on the body whose position coordinates are to be measured. The body is removed, a block 3 whose size is accurately known is placed on lines of the scale on the surface plate 1 in front of and behind the point, and the graduation of the dial gauge 2 is read to find the coordinates by proportional calculation. This operation is carried out individually by (x), (y), and (z) coordinates. Thus, measurements are taken in an optional three-dimensional space wherein the surface plate 1 can be set.

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