Issued Patents All Time
Showing 25 most recent of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7594536 | EGR cooler | Hiroyuki Sugihara, Makoto Tsujita, Yoji Yamashita, Junji Honma | 2009-09-29 |
| 6951601 | Oxygen concentration detector | Akio Tanaka, Toshitaka Saito, Hiromi Sano, Kazunori Suzuki, Masaya Fujimoto | 2005-10-04 |
| 6332965 | Composite gas sensor | Tomio Sugiyama, Masahiro Shibata, Hiromi Sano, Akio Tanaka | 2001-12-25 |
| 6254926 | Method of producing oxygen sensor element | Toru Katafuchi, Kiyomi Kobayashi, Hiromi Sano, Toshitaka Saito | 2001-07-03 |
| 6174489 | Method for manufacturing a gas sensor unit | Kiyomi Kobayashi, Toshitaka Saito, Hiromi Sano, Namitsugu Fujii | 2001-01-16 |
| 6110348 | NOx sensor and manufacturing method of the same | Tomio Sugiyama, Masahiro Shibata, Hiromi Sano | 2000-08-29 |
| 6055972 | Air fuel ratio control apparatus having air-fuel ratio control point switching function | Masaya Fujimoto, Minoru Ohta, Makoto Nakae, Isao Watanabe, Hiromi Sano +1 more | 2000-05-02 |
| 5969229 | Lead wire for sensor | Makoto Hori, Toshimi Miyamoto, Kenji Fukaya, Masahiro Hamaya, Minoru Ota | 1999-10-19 |
| 5948225 | Oxygen sensor element | Toru Katafuchi, Kiyomi Kobayashi, Hiromi Sano, Toshitaka Saito | 1999-09-07 |
| 5935399 | Air-fuel ratio sensor | Akio Tanaka, Hiromi Sano, Toshitaka Saito, Katsuhiro Ishikawa | 1999-08-10 |
| 5900129 | Oxygen concentration sensor | Nobuyuki Tsuji, Takashi Kojima, Isao Watanabe, Masahiro Hamaya, Minoru Ohta | 1999-05-04 |
| 5800689 | Oxygen concentration detector | Makoto Hori, Toshimi Miyamoto, Kenji Fukaya, Masahiro Hamaya, Minoru Ohta | 1998-09-01 |
| 5787866 | Air-fuel ratio sensor | Tomio Sugiyama, Hiromi Sano, Masahiro Shibata, Syuichi Nakano, Shinichiro Imamura | 1998-08-04 |
| 5766434 | Oxygen concentration detecting device and method for fabricating the same | Namitsugu Fujii, Hiromi Sano, Yasumichi Hotta, Motoaki Satou | 1998-06-16 |
| 5766672 | Method of manufacturing an oxygen concentration detector element | Yasumichi Hotta, Hiromi Sano, Namitsugu Fujii | 1998-06-16 |
| 5729189 | Positive TCR thermistor device having surface roughness and filling oil for high heat transfer characteristics | Yasuhiro Oya, Keiichi Yamada, Yasuaki Tsujimura | 1998-03-17 |
| 5716507 | Oxygen sensor element | Akio Tanaka, Tositaka Saito, Hiromi Sano | 1998-02-10 |
| 5707503 | Oxygen sensor element | Yasumichi Hotta, Hiromi Sano, Toshitaka Saito, Masatoshi Suzuki | 1998-01-13 |
| 5609825 | Oxygen sensor | Tomoji Fukaya | 1997-03-11 |
| 4834052 | Internal combustion engine having air/fuel mixture with anti-reducing semiconducting porcelain having a positive temperature coefficient of resistance and method for using such porcelain for heating air/fuel mixture | Makoto Hori, Hitoshi Niwa, Hirokatsu Mukai, Toshiatsu Nagaya, Itsuhei Ogata | 1989-05-30 |
| 4831432 | Positive ceramic semiconductor device | Makoto Hori, Itsuhei Ogata, Hitoshi Niwa | 1989-05-16 |
| 4716279 | Self-temperature controlling type heating device | Makoto Hori, Toshiatsu Nagaya, Hirokatsu Mukai, Hitoshi Niwa | 1987-12-29 |
| 4685437 | Intake air heater for internal combustion engine with perforated plate heater element partially traversing air passage | Toshiaki Tanaka, Hitoshi Niwa, Hirokatsu Mukai, Akio Nara, Etsuji Nomura +3 more | 1987-08-11 |
| 4671058 | Heating device | Hitoshi Yoshida, Hirohumi Suzuki, Kazuo Oyobe, Etsuji Nomura, Kazuma Matsui | 1987-06-09 |
| 4632683 | Exhaust gas purifying filter and production of the same | Masanori Fukutani, Kazuyuki Ito, Keiji Ito | 1986-12-30 |