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Dive into the research topics where Hiroshi Akama is active.

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Featured researches published by Hiroshi Akama.


Jsae Review | 2001

Study of an oxidation catalyst system for diesel emission control utilizing HC adsorption

Motohisa Kamijo; Maki Kamikubo; Hiroshi Akama; Kenjirou Matsushita

Abstract Improvement of diesel engine fuel economy is resulting in an increasingly lower exhaust gas temperature. In this study, the correlation between various catalytic reactions and the low-temperature activity of an oxidation catalyst was investigated. Zeolite was added to the catalyst to enable HC adsorption with the aim of achieving high HC conversion performance even in the low exhaust gas temperature region. The results indicate that the HC adsorption capability of zeolite influences some elemental reactions at low exhaust temperatures. Based on this knowledge, an oxidation catalyst was developed for diesel engine use that provides better low-temperature CO oxidation performance in addition to improved HC conversion.


Archive | 2009

EXHAUST GAS PURIFYING DEVICE

Motohisa Kamijo; Maki Kamikubo; Hiroshi Akama; Jyunji Itou; Motohiro Shinzawa; Yasuhisa Kitahara


Archive | 2001

Fuel vapor treatment system

Masashi Ito; Mikio Kawai; Kazuhiko Shinohara; Hiroshi Akama; Junji Ito


Archive | 2001

Exhaust gas purifying system and method

Hiroshi Akama; Hiroaki Kaneko; Junji Itou; Motohisa Kamijo


Archive | 1994

Catalysts for the purification of exhaust gas

Hiroyuki Kanesaka; Hiroshi Akama; Maki Kamikubo


Archive | 2001

Hydrogen-containing gas producing system and exhaust gas purifying system using same

Hiroshi Akama; Junji Itou; Hiroaki Kaneko


Archive | 2001

Method for cleaning exhaust and apparatus therefor

Hiroshi Akama; Yasunari Hanaki; Motohisa Kamijo; 元久 上條; 保成 花木; 弘 赤間


Archive | 2001

Exhaust gas cleaning system and exhaust emission control method

Hiroshi Akama; Junji Ito; Motohisa Kamijo; Hiroaki Kaneko; 元久 上條; 淳二 伊藤; 弘 赤間; 浩昭 金子


Archive | 2000

Exhaust emission control device and exhaust emission control method using this

Hiroshi Akama; Motohisa Kamijo; 元久 上條; 弘 赤間


Archive | 2009

PARTICULATE SUBSTANCE REMOVING MATERIAL, PARTICULATE SUBSTANCE REMOVING FILTER CATALYST USING PARTICULATE SUBSTANCE REMOVING MATERIAL, AND METHOD FOR REGENERATING PARTICULATE SUBSTANCE REMOVING FILTER CATALYST

Hiroshi Akama; Hitoshi Onodera; Toru Nishizawa; Yasunari Hanaki; Hideaki Morisaka

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