Issued Patents All Time
Showing 176–200 of 290 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6272097 | Optical head and apparatus for recording and reproducing optical information through the use of the optical head | Takeshi Nakao, Shigeru Nakamura, Takeshi Shimano | 2001-08-07 |
| 6263061 | Digital button telephone system and extension terminal for the same | Hiroshi Mano, Setsuo Kimura, Yoshihito Nagano, Masayuki Tsurusaki, Takashi Watanabe +4 more | 2001-07-17 |
| 6257782 | Key switch with sliding mechanism and keyboard | Junichi Maruyama, Kazutoshi Hayashi, Goro Watanabe | 2001-07-10 |
| 6246857 | Image forming apparatus | — | 2001-06-12 |
| 6243442 | Telephone exchange apparatus | Nobuhiro Masaki, Shuji Fujitsuka, Takashi Aoki | 2001-06-05 |
| 6233927 | Exhaust gas purification device | Shinya Hirota, Nobumoto Ohashi, Kazuhiro Itoh, Eiji Iwasaki, Kouji Yoshizaki | 2001-05-22 |
| 6233925 | Exhaust discharge control device for internal combustion engine | Shinya Hirota, Satoshi Iguchi | 2001-05-22 |
| 6223429 | Method of production of semiconductor device | Aizou Kaneda, Masaaki Yasuda, Itsuo Watanabe, Tomohisa Ohta, Fumio Inoue +9 more | 2001-05-01 |
| 6212885 | Exhaust emission control system of internal combustion engine | Shinya Hirota, Satoshi Iguchi, Shunsuke Toshioka | 2001-04-10 |
| 6199374 | Exhaust gas purifying device for engine | Shinya Hirota | 2001-03-13 |
| 6192675 | Exhaust gas purification device for an internal combustion engine | Shinya Hirota, Kouji Yoshizaki, Nobumoto Ohashi, Eiji Iwasaki, Kazuhiro Itoh | 2001-02-27 |
| 6191408 | Photosensor signal processing apparatus | Sukeyuki Shinotsuka, Katsuhiko Takebe, Toshio Imai | 2001-02-20 |
| 6178743 | Device for reactivating catalyst of engine | Shinya Hirota | 2001-01-30 |
| 6119452 | Device for purifying exhaust gas of internal combustion engine | Yukio Kinugasa, Kouhei Igarashi, Takaaki Itou, Naoto Suzuki, Takehisa Yaegashi +1 more | 2000-09-19 |
| 6101999 | Compression ignition type engine | Nobumoto Ohashi, Eiji Iwasaki, Shinya Hirota, Kouji Yoshizaki, Kazuhiro Itoh | 2000-08-15 |
| 6083467 | Exhaust gas purifying catalyst and process for producing the same | Shinichi Takeshima, Tetsuya Yamashita, Satoshi Iguchi, Katsuhiko Wakabayashi, Masahiro Kishida | 2000-07-04 |
| 6076164 | Authentication method and system using IC card | Satoshi Hada, Mitsuru Yamada | 2000-06-13 |
| 6058700 | Device for purifying exhaust gas of engine | Tetsuya Yamashita, Shinichi Takeshima, Shinya Hirota, Eiji Iwasaki, Kouji Yoshizaki +2 more | 2000-05-09 |
| 6045371 | Connector for electrical connection of circuit boards and such a method for electrical connection of circuit boards using such a connector | Kiyoshi Kagawa | 2000-04-04 |
| 6029443 | Catalyst with upstream cooling and downstream heating | Shinya Hirota, Satoshi Iguchi, Tatsuji Mizuno, Kazuya Kibe | 2000-02-29 |
| 6021640 | Exhaust gas purification device for an engine | Shinya Hirota, Satoshi Iguchi, Tatsuji Mizuno, Kazuya Kibe | 2000-02-08 |
| 6010673 | Method for purifying exhaust gas | Takaaki Kanazawa, Shinichi Matsumoto, Satoshi Iguchi, Kenji Katoh, Shinichi Takeshima +4 more | 2000-01-04 |
| 5995717 | Image forming apparatus | — | 1999-11-30 |
| 5974791 | Exhaust gas purification device for an internal combustion engine | Shinya Hirota | 1999-11-02 |
| 5934072 | Exhaust gas purifying device for engine | Shinya Hirota, Tatsuji Mizuno | 1999-08-10 |