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Nobuhiro Hayakawa

NGK

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Featured researches published by Nobuhiro Hayakawa.

Archive | 1993

Method for detecting deterioration of catalyst and measuring conversion efficiency thereof with an air/fuel ratio sensor

Yasuo Ito; Nobuhiro Hayakawa; Tessho Yamada

SAE transactions | 1992

Universal air-fuel ratio heated exhaust gas oxygen sensor and further applications

Tessho Yamada; Nobuhiro Hayakawa; Yoshihide Kami; Takeishi Kawai

Archive | 1991

Method for measuring conversion efficiency of catalyst and detecting deterioration thereof with air/fuel ratio sensors

Yasuo Ito; Nobuhiro Hayakawa

Archive | 1993

Oxygen sensor with higher resistance to repeated thermal-shocks and shorter warm-up time

Tessho Yamada; Akio Mizutani; Nobuhiro Hayakawa

Archive | 1998

Process for forming electrode for ceramic sensor element by electroless plating

Hiroshi Isomura; Yukichika Ito; Akio Mizutani; Nobuhiro Hayakawa

Archive | 1994

Method of activating zirconia oxygen sensor

Takeshi Kawai; Nobuhiro Hayakawa; Tessho Yamada

Archive | 1999

Method for measuring NOx concentration and NOx concentration sensor

Tessho Yamada; Noboru Ishida; Toshitaka Matsuura; Yoshiro Noda; Nobuhiro Hayakawa; Norihiko Nadanami; Satoshi Sugaya; Takaki Otsuka; Masashi Ando; Takafumi Oshima

Archive | 1985

Device for detecting concentration of oxygen in exhaust gas

Nobuhiro Hayakawa; Masahiko Yamada; Toshiyuki Ishihara

Archive | 1997

Oxygen sensor with a heater

Nobuhiro Hayakawa; Syogo Kawajiri; Yoshiro Noda; Hiroshi Miyata; Satoshi Ishikawa; Shoji Akatsuka

Archive | 1991

Solid electrolyte of partially stabilized zirconia and method of producing same

Nobuhiro Hayakawa; Hiroyuki Ishiguro; Takeshi Kitano; Yutaka Adachi

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daisuke Uematsu

Denso

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