Issued Patents All Time
Showing 51–66 of 66 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6644023 | Exhaust emission control device of internal combustion engine | Shinya Hirota, Toshiaki Tanaka, Kazuhiro Itoh, Takamitsu Asanuma, Koichi Kimura | 2003-11-11 |
| 6594991 | Exhaust purifying method and apparatus of an internal combustion engine | Kazuhiro Itoh, Toshiaki Tanaka, Shinya Hirota, Takamitsu Asanuma, Koichi Kimura | 2003-07-22 |
| 6588204 | Device for purifying the exhaust gas of an internal combustion engine | Shinya Hirota, Toshiaki Tanaka, Kazuhiro Itoh, Koichi Kimura | 2003-07-08 |
| 6568178 | Device for purifying the exhaust gas of an internal combustion engine | Shinya Hirota, Toshiaki Tanaka, Kazuhiro Itoh, Takamitsu Asanuma, Koichi Kimura | 2003-05-27 |
| 6546721 | Exhaust gas purification device | Shinya Hirota, Toshiaki Tanaka, Kazuhiro Itoh, Koichi Kimura, Takamitsu Asanuma | 2003-04-15 |
| 6536723 | Tripod with improved telescopic extension | — | 2003-03-25 |
| 6510686 | Exhaust gas purifier for internal combustion engine and method for purifying exhaust gas | Koichi Kimura, Toshiaki Tanaka, Shinya Hirota, Kazuhiro Itoh, Takamitsu Asanuma | 2003-01-28 |
| 6007259 | Tripods for supporting a video camera | Akinari Mori, Renjiro Okano | 1999-12-28 |
| 5746407 | Tripod | — | 1998-05-05 |
| 5718544 | Method for producing a two-part member having rack teeth | — | 1998-02-17 |
| 5365293 | Panhead of improved operability | — | 1994-11-15 |
| 5341185 | Center column friction control system for video tripod | — | 1994-08-23 |
| D344969 | Video camera tripod | — | 1994-03-08 |
| 5083147 | Panhead | — | 1992-01-21 |
| 5012265 | Panhead | — | 1991-04-30 |
| 4443128 | Fixing device having two pivotally interconnected clamps | Toshiharu Yamamoto | 1984-04-17 |