1

2
Seizi Takeuchi, Kenzo Ishii, Toshiki Kahara, Jinichi Imahashi, Masato Takeuchi, Hideo Okada, Sigeru Okabe, Shimpei Matsuda, Fumito Nakajima, Hirosi Tobita, Kohki Tamura: Fuel cell. Hitachi, Antonelli Terry & Wands, October 4, 1983: US04407905 (34 worldwide citation)

Fuel cell with improved and stabilized electrode performance having at least one gas diffusion electrode, where the gas diffusion electrode comprises an electronconductive, gas-permeable substrate and an electrode catalyst uniformly distributed on the substrate, the electrode catalyst comprising col ...


3
Shimpei Matsuda, Fumito Nakajima, Masato Takeuchi, Shigeo Uno, Akira Kato, Makoto Imanari, Yoshihisa Watanabe: Method and apparatus for determining ammonia concentration of gas. Hitachi, Mitsubishi Petrochemical Company, Babcock Hitachi, Craig & Antonelli, August 31, 1976: US03977836 (22 worldwide citation)

An ammonia gas to be determined, and an oxidative gas containing nitrogen oxides in moles more than those of the ammonia are brought into contact with an analytical catalyst capable of forming nitrogen and water from ammonia and nitrogen oxides.


4
Akira Kato, Shimpei Matsuda, Shigeo Uno, Jinichi Imahashi, Fumito Nakajima: Process for catalytically treating an exhaust gas containing ammonia gas and oxygen gas to reduce said ammonia gas to nitrogen. Hitachi, Craig & Antonelli, March 28, 1978: US04081510 (20 worldwide citation)

A process for treating an exhaust gas containing substantially only ammonia gas and oxygen gas as reactants to decompose catalytically the ammonia gas to nitrogen and water, which comprises contacting at an elevated temperature the exhaust gas with a catalyst consisting essentially of the oxides of ...


5
Shimpei Matsuda, Akira Kato, Shigeo Uno, Fumito Nakajima: Process for treating a waste gas containing sulfur oxides. Babcock Hitachi, Hitachi, Craig and Antonelli, February 5, 1980: US04187282 (20 worldwide citation)

A waste gas containing sulfur oxides is contacted with an adsorbent comprising an intimate mixture of an iron oxide and/or a copper oxide and a titanium oxide at a temperature of 250.degree.-500.degree. C. The sulfur oxides thus adsorbed are desorbed with a reducing gas and recovered as sulfur mater ...


6
Akira Kato, Shimpei Matsuda, Shigeo Uno, Jinichi Imahashi, Yoshihisa Watanabe, Makoto Imanari, Fumito Nakajima: Process for catalytically treating exhaust gas containing NO.sub.x in the presence of ammonia gas. Mitsubishi Petrochemical, Hitachi, Babcock Hitachi Kabushiki Kaisha, Craig & Antonelli, February 6, 1979: US04138469 (18 worldwide citation)

A process for treating an exhaust gas containing nitrogen oxides, oxygen and ammonia gas with a catalyst consisting essentially of titanium oxide, copper oxide in an amount of 0.02 to 0.3 mole and molybdenum oxide or tungsten oxide in an amount of 0.01 to 0.5 mole per one mole of the titanium oxide. ...


7
Shimpei Matsuda, Akira Kato, Toshikatsu Mori, Teruo Kumagai, Yukio Hishinuma, Hidetoshi Akimoto, Fumito Nakajima: Process for treating flue gas. Hitachi, Babcock Hitachi Kabushiki Kaisha, Thomas E Beall Jr, September 21, 1982: US04350670 (11 worldwide citation)

A coal or petroleum combustion flue gas containing sulfur oxides and dust is treated by contacting the flue gas with a sulfur dioxide-oxidizing catalyst, thereby converting sulfur dioxide to sulfur trioxide, allowing the resulting sulfur trioxide to react with components of dust, absorbing the triox ...


8
Hideo Okada, Jinichi Imahashi, Seizi Takeuchi, Sigeru Okabe, Toshiki Kahara, Kenzo Ishii, Masato Takeuchi, Shimpei Matsuda, Kohki Tamura, Hiroshi Tobita: Fuel cell electrode. Hitachi, Antonelli Terry & Wands, May 1, 1984: US04446210 (10 worldwide citation)

A fuel cell electrode being substantially free from cracks on the surface of catalyst layer on the electrode and having a good electrode performance under the atmospheric pressure or under pressure when assembled into a fuel cell, which comprises a gas-diffusing electroconductive substrate with cont ...


9

10
Toshikatsu Mori, Teruo Kumagai, Shimpei Matsuda, Fumito Nakajima: Method and apparatus for converting sulfur dioxide in gas to sulfur. Hitachi, Babcock Hitachi Kabushiki Kaisha, Thomas E Beall Jr, July 27, 1982: US04341753 (9 worldwide citation)

There is provided a method for converting sulfur dioxide in an exhaust gas to sulfur, which comprises the reduction step of reducing sulfur dioxide in an exhaust gas containing water vapor to hydrogen sulfide in the presence of carbon, a part of the exhaust gas is caused to bypass the reduction step ...