Issued Patents All Time
Showing 76–100 of 101 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8240130 | Abnormality diagnosis apparatus for exhaust purification system | Hiroshi Sawada | 2012-08-14 |
| 8234916 | Abnormality diagnosis device for air-fuel ratio sensor | Hiroshi Sawada, Yasuyuki Yokokawa | 2012-08-07 |
| 8171781 | Abnormality diagnosis apparatus and abnormality diagnosis method for NOx catalyst | Hiroshi Sawada, Toru Kidokoro | 2012-05-08 |
| 8171723 | Abnormality detection system and abnormality detection method for internal combustion engine | Taiga Hagimoto, Hiroshi Sawada | 2012-05-08 |
| 8132450 | Malfunction diagnosis device for exhaust gas purification system and malfunction diagnosis method therefor | Hiroshi Sawada, Taiga Hagimoto, Kazuhiro Wakao, Keisuke Sano, Kimikazu Yoda | 2012-03-13 |
| 8074442 | Method of determining abnormality in particulate filter | Hiroshi Sawada, Keisuke Fukuoka | 2011-12-13 |
| 8004161 | Multilayered piezoelectric element and method of producing the same | Toshiatsu Nagaya, Kouji Noda, Masatoshi Ikeda, Masaya Nakamura | 2011-08-23 |
| 7980059 | Exhaust gas purification system for internal combustion engine | Hiroshi Sawada | 2011-07-19 |
| 7902098 | Cubic boron nitride sintered material and cutting tool using the same | Kenji Noda | 2011-03-08 |
| 7849672 | Failure diagnosis method for reducing agent addition valve | Hiroshi Sawada, Satoru Maeda | 2010-12-14 |
| 7672050 | Refractive index controlled diffractive optical element and its manufacturing method | Takayuki NAKAYA, Hidetoshi Takeda, Yoshihito Hatazawa, Toshiro Kotaki | 2010-03-02 |
| 7550821 | Nitride semiconductor device | Kazushi Nakazawa, Masahiro Hikita, Yasuhiro Uemoto, Tetsuzo Ueda, Manabu Yanagihara +1 more | 2009-06-23 |
| 7520274 | Air fuel ratio sensor deterioration determination system for compression ignition internal combustion engine | Hiroshi Sawada | 2009-04-21 |
| 7421333 | Monitoring system for internal combustion engine | Hiroshi Sawada | 2008-09-02 |
| 7250123 | Composite construction and manufacturing method thereof | Hiromi Fujioka, Tatsuyuki Nakaoka | 2007-07-31 |
| 7246485 | Exhaust gas purifying device and method for internal combustion engine | Hisashi Ohki, Masaaki Kobayashi, Naofumi Magarida, Shinobu Ishiyama, Akihiko Negami | 2007-07-24 |
| 7018726 | Cemented carbide and cutting tool | Keiji Usami, Hiroshi Ohata | 2006-03-28 |
| 6922988 | Exhaust emission control apparatus and method for internal combustion engine | Masaaki Yamaguchi, Hisashi Ohki, Masaaki Kobayashi | 2005-08-02 |
| 6878434 | Composite construction and manufacturing method thereof | Hiromi Fujioka, Tatsuyuki Nakaoka | 2005-04-12 |
| 6872234 | Cutting member | — | 2005-03-29 |
| 6797369 | Cemented carbide and cutting tool | Keiji Usami, Hiroshi Ohata | 2004-09-28 |
| 6756110 | Cutting tool | — | 2004-06-29 |
| 6619035 | Exhaust emission control device of internal combustion engine | Hiroki Matsuoka, Souichi Matsushita, Yukihiro Tsukasaki, Kotaro Hayashi, Shinobu Ishiyama +7 more | 2003-09-16 |
| 6371857 | Torsional vibration dampers | Satoshi Kono | 2002-04-16 |
| 6223625 | Torque transmitting and torsion damping apparatus for use in motor vehicles | Hirofumi Ara, Toshio Harima, Masato Ichinose, Shoichi Tsuchiya | 2001-05-01 |