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71. 发明专利

JPH0559937A ENGINE EXHAUST EMISSION CONTROL DEVICE 失效
公开(公告)号：JPH0559937A
公开(公告)日：1993-03-09
申请号：JP21845391
申请日：1991-08-29
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： HONCHI AKIO , OGAWA TOSHIO , WATANABE NORIKO , KURODA OSAMU , YAMASHITA HISAO , MIYADERA HIROSHI , ATAGO TAKESHI , MATSUO YOSHIO
IPC分类号： F01N3/20 , F01N3/08 , F01N3/22 , F01N3/24 , F01N3/28 , F01N13/02
摘要： PURPOSE:To quickly raise temperature of a catalyst up to activating temperature before hydrocarbon is desorbed from an adsorbent by once adsorbing unburnt hydrocarbon discharged in a large quantity at the time of starting an engine. CONSTITUTION:A catalyst 5 of high carbon monoxide combustion activation is arranged between an adsorbent 3 down the adsorbent 3 of an exhaust passage 2 and a catalyst 4 for exhaust emission control, carbon monoxide passing through the adsorbent 3 is catalytically burnt and temperature of the catalyst 4 for exhaust emission control is improved to rise and made to reach activating temperature. As the catalyst 4 for exhaust purification reaches the activating temperature before unburnt hydrocarbon starts to be desorbed from the adsorbent 3, it is possible to efficiently purify the unburnt hydrocarbon and to reduce the amount of the hydrocarbon discharged outside.

72. 发明专利

JPH0477402B2 失效
公开(公告)号：JPH0477402B2
公开(公告)日：1992-12-08
申请号：JP22017487
申请日：1987-09-04
申请人： HITACHI LTD
发明人： OGAWA TOSHIO , FUJII MITSURU , ASAI TADAMICHI , IKEGAMI AKIRA , ATO KAZUHIKO , OOTSU HIROSHI
IPC分类号： H01B1/16 , H05K1/09 , H05K3/38

73. 发明专利

JPH0463699B2 失效
公开(公告)号：JPH0463699B2
公开(公告)日：1992-10-12
申请号：JP6214283
申请日：1983-04-11
申请人： HITACHI LTD
发明人： OGAWA TOSHIO , KATAKURA KAGEYOSHI , TAKEUCHI HIROYUKI , NAKATANI CHITOSE , SHIMADA TAMOTSU
IPC分类号： A61B18/00 , A61B17/32 , A61B18/20

74. 发明专利

JPH04128055A ELECTRONIC CIRCUIT DEVICE AND ITS MANUFACTURE 失效
公开(公告)号：JPH04128055A
公开(公告)日：1992-04-28
申请号：JP24700390
申请日：1990-09-19
申请人： HITACHI LTD
发明人： OGAWA TOSHIO , OISHI TOMOJI , ASAI TADAMICHI , KAMIMURA NORITAKA
IPC分类号： B41J2/335
摘要： PURPOSE:To achieve security of sufficient reliability by improving sealing performance of a resistor by a method wherein the whole surface of the resistor containing a local position of a trimmed channel after trimming are coated by an inorganic material. CONSTITUTION:An inorganic protective coat film 16 is formed on a surface of a resistor 13 containing a local position 15 of which a resistance value is adjusted by a physical method on the thick film resistor 13 in an electronic circuit device in which electronic parts are mounted on a ceramics substrate, the electronic parts are connected with a thick film conductor wiring 12 burnt on the ceramic substrate 11, and a thick film resistor 13 of which a resistance value is adjusted by physical method is arranged. This in organic protective coat film 16 is formed at a low temperature to an extent that variation in resistance value of the resistor after trimming can be actually negligible. For instance, it can be formed by applying metal alkoxide solution to a surface of the resistor and by making a dehydration condensating reaction proceed by using irradiation of light with an ultra violet radiation source. Therefore, even though the protective coat film is formed on a surface of the thick film resistor after trimming, variation in resistance value due to that is extremely small, and high reliability of an extremely stabilized characteristic can be secured.

75. 发明专利

JPH0478413A METHOD AND DEVICE FOR SEPARATING GASEOUS MIXTURE 失效
公开(公告)号：JPH0478413A
公开(公告)日：1992-03-12
申请号：JP19110090
申请日：1990-07-19
申请人： HITACHI LTD
发明人： KURODA OSAMU , DOI RYOTA , OGAWA TOSHIO , HIDA HIROSHI , MORI TOSHIKATSU
IPC分类号： B01D53/22 , B01D61/38 , B01D69/00
摘要： PURPOSE:To separate gaseous carbon dioxide and to efficiently transport the carbon dioxide on an industrial scale by providing a heating means capable of making the temp. of the membrane surface layer of the liq. film on the raw gas chamber side lower than the temp. of the membrane surface on the permeated gas chamber side. CONSTITUTION:A gaseous mixture consisting of carbon dioxide, oxygen and the balance nitrogen and kept at room temp. is passed through a raw gas chamber 3, a permeated gas chamber 4 is filled with the gas of the same composition, a valve 7 is closed, a valve 8 is opened, and a tungsten lamp about 10cm from the surface of a light transmission window 2 is turned on. The valve 7 is opened immediately after the lamp is turned off to supply the raw gas to the chamber 4, the gas discharged through the valve 8 while the lamp is turned on is replaced by the raw gas, and the obtained gas is collected. The valve 7 is again closed, the lamp is again turned on, and the process is repeated. Consequently, about 5.7ml of the gas of the same composition contg. almost 52vol.% carbon dioxide is obtained.

76. 发明专利

JPH0459037A WATER-REPELLENT PHOTOCATALYST REACTOR 失效
公开(公告)号：JPH0459037A
公开(公告)日：1992-02-25
申请号：JP15975990
申请日：1990-06-20
申请人： HITACHI LTD
发明人： OGAWA TOSHIO , HIDA HIROSHI , DOI RYOTA , MORI TOSHIKATSU , KURODA OSAMU
IPC分类号： B01D53/86 , B01J19/00 , C01B32/50 , C07B31/00 , C07C1/02 , C07C9/04 , C07C29/15 , C07C31/04
摘要： PURPOSE:To promote the gaseous CO2 conversion reaction by irradiating the photoreduction catalyst suspended close to the water surface in a water vessel with sunlight and supplying gaseous carbon dioxide on the catalyst to cause a photoreduction reaction. CONSTITUTION:The photoreduction catalyst 1 in which a catalyst obtained by depositing a reducing active component on a conductive carrier is brought into contact with a photocatalyst obtained by depositing an oxidizing active component on a semiconductor through a water-repellent material is suspended close to the water surface in a water vessel 5. The catalyst is irradiated with sunlight 2, and gaseous carbon dioxide 3 is supplied on the catalyst 1 to cause a photoreduction reaction. Consequently, the gaseous carbon dioxide is easily supplied on the photoreduction catalyst close to the water surface, and the gaseous CO2 conversion reaction is promoted.

77. 发明专利

JPH03269908A THICK FILM COMPOSITION AND THICK FILM HYBRID INTEGRATED CIRCUIT (IC) USING THE SAME 失效
公开(公告)号：JPH03269908A
公开(公告)日：1991-12-02
申请号：JP6663190
申请日：1990-03-16
申请人： HITACHI LTD , HITACHI CHEMICAL CO LTD
发明人： ITO OSAMU , ASAI TADAMICHI , OGAWA TOSHIO , KAMIMURA NORITAKA , KOBAYASHI TAKAO , OTANI MICHIO , NIIHORI HIROSHI
IPC分类号： H01C7/00 , H01B1/14 , H05K1/09
摘要： PURPOSE:To obtain a thick film hybrid integrated circuit (IC) having excellent characteristics by using globular glass for a glass component of a thick film composition formed of a conductor, a resistor and a dielectric. CONSTITUTION:Globular glass is used for a glass component of a thick film composition formed of a conductor, a resistor and a dielectric. The globular glass is likely to be uniformly dispersed at the time of kneading, thus attaining preferable fluidity of paste. Accordingly, it is excellent in printing performance and fineness, and fluctuation in thickness and width of a film can be reduced. Therefore, each characteristic of the formed conductor, resistor and dielectric becomes surpassing. Furthermore, adoption of this composition enables a thick film hybrid IC having high reliability to be obtained.

78. 发明专利

JPH03105871A METHANOL FUEL CELL 失效
公开(公告)号：JPH03105871A
公开(公告)日：1991-05-02
申请号：JP24210589
申请日：1989-09-20
申请人： HITACHI LTD
发明人： SHIMIZU TOSHIO , DOI RYOTA , OGAWA TOSHIO , KURODA OSAMU , EBARA KATSUYA , HORIBA TATSUO , TAKAHASHI SANKICHI
IPC分类号： H01M8/04 , H01M8/10
摘要： PURPOSE:To prevent oxygen from being generated by electrolysis of water and the component parts of a methanol fuel cell from being deteriorated so as to enhance the reliability of the methanol fuel cell and make the cell life longer by causing methanol contained in an anolyte and water to electrically and chemically react with each other within a manifold in order to yield carbon dioxide gas and hydrogen gas. CONSTITUTION:When anolyte 50 is fed into a methanol fuel cell from an anolyte entrance 52 a fuel chamber 51 is filled with the anolyte 50 through the manifold 42 of a carbon separator 40 as a main pipeline and through a branching line 43, and when air 60 of an oxidizing agent is fed into an oxidizing agent chamber 61 a potential difference between the fuel electrode 20 and oxidizing agent electrode 30 of each single cell occurs so that the single cells are connected in series. Under these conditions, liquid short-circuit occurs as in the electrical equivalent circuit of a cell stack 3 so that a current is caused to flow through the anolyte 50. In this case, current flows first from an auxiliary electrode 87 having catalyst and a reaction occurs in the auxiliary electrode 87 so that carbon dioxide gas and hydrogen gas are produced. Thus generation of oxygen causing electrolyte corrosion of the carbon separator 40 is restratined and the life of a laminated cell device is extended.

79. 发明专利

JPH02106808A CONDUCTIVE PASTE, ELECTRONIC CIRCUIT PARTS USING SAME AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH02106808A
公开(公告)日：1990-04-18
申请号：JP25948088
申请日：1988-10-17
申请人： HITACHI LTD , HITACHI CHEMICAL CO LTD
发明人： OGAWA TOSHIO , ASAI TADAMICHI , ITO OSAMU , HASEGAWA MITSURU , IKEGAMI AKIRA , KOBAYASHI TAKAO , ISOMAE HIROMI , ATO KAZUHIKO , OTANI MICHIO , EBISAWA KATSUO
IPC分类号： C09D5/24 , H01B1/00 , H01B1/22 , H05K1/09
摘要： PURPOSE:To provide a fine thin film circuit on a ceramics substrate by forming it out of a certain amount of Cu powder whose standard grain size is not more than 1mum, at least one kind of element chosen from Ib group other than Cu on a periodic table and VIII group including Mn, as well as frit glass as a binder, respectively. CONSTITUTION:A conductive paste including 100 weight part of Cu powder whose standard grain size is not more than 1mum. 0.005 to 2 weight part of at least one kind of element chosen from Ib group other than Cu on periodic table, VIII group including Mn, as well as 1 to 10 weight part of frit glass as a binder, is used. Cu film 2 whose film thickness is not more than 10mum can be formed on a ceramics substrate 1 easily. Electronic circuit parts with a fine circuit pattern which is equal to conventional Au film can thus be provided, and especially the excellent effect can be obtained when the high frequency loss is required to be low for electronic circuit parts.

80. 发明专利

JPH0295358A PULSE DOPPLER MEASURING DEVICE 失效
公开(公告)号：JPH0295358A
公开(公告)日：1990-04-06
申请号：JP24416488
申请日：1988-09-30
申请人： HITACHI LTD
发明人： NISHIYAMA HISASHI , KATAKURA KAGEYOSHI , OGAWA TOSHIO
IPC分类号： G01F1/66 , A61B8/06 , G01S15/50
摘要： PURPOSE:To prevent the mistaken measurement of a blood flow direction by correcting a Doppler frequency obtained with wave transmission intervals T and T+Ts by means of a correcting value. CONSTITUTION:In the wave transmitting part of an ultrasonic pulse, the section of the pulse string of the wave transmission interval T and the section of the pulse string of the wave transmission interval T+Ts are provided, an additional mean phase difference vector is obtained as to the wave transmission interval T, a declination is detected, the additional mean phase difference vector is obtained as to the wave transmission interval T+Ts, and the declination is detected. Next, in a Doppler signal to be made to pass a filter with a characteristic common to both the wave transmission intervals T and T+Ts, the vector of the difference between the phase differences is obtained, a value, in which a declination argZ and T/Ts are multiplied, is made into an index, and the correcting value is obtained. The Doppler frequency obtained with the wave transmission intervals T and T+Ts is corrected with the correcting value, and fold over is prevented.

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