Issued Patents All Time
Showing 1–25 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9475675 | Elevator and elevator refurbishing method | Shigenobu Kawakami | 2016-10-25 |
| 7144345 | Toothed belt transmission | Shigeki Edamatsu, Hideo Urata, Hiroshi Kida | 2006-12-05 |
| 7017917 | Seal structure in engine body | Keita Ito, Atsushi Miyazaki | 2006-03-28 |
| 6839511 | Camera system, camera, accessory device and method for judging and controlling an accessory device | Mamoru Sakashita, Masataka Ide, Makoto Harada, Youji Watanabe | 2005-01-04 |
| 6738574 | Camera system and accessory device | Mamoru Sakashita, Masataka Ide, Makoto Harada | 2004-05-18 |
| 6705263 | Handheld type four-cycle engine | Keita Ito, Koji Kasai, Yasuhiro Shimizu, Takeshi Maeda, Yasutake Ryu | 2004-03-16 |
| 6672273 | Handheld type four-cycle engine | Keita Ito, Koji Kasai, Yasuhiro Shimizu, Takeshi Maeda, Yasutake Ryu | 2004-01-06 |
| 6592059 | Foreign matter entanglement-preventing device in working engine | Keita Ito, Takeshi Maeda, Kenji Higashi | 2003-07-15 |
| 6561154 | Engine head cover structure | Keita Ito, Takeshi Maeda, Yasutake Ryu | 2003-05-13 |
| 6547254 | Seal structure between cylinder head and head cover in engine | Keita Ito, Tetsuya Arai, Shigeki Edamatsu | 2003-04-15 |
| 6539904 | Valve-operating mechanism in 4-cycle engine | Keita Ito, Takeshi Maeda, Yasuhiro Shimizu | 2003-04-01 |
| 6530355 | 4-cycle engine | Keita Ito, Atsushi Miyazaki, Tetsuya Arai | 2003-03-11 |
| 6510829 | Handheld type four-cycle engine | Keita Ito, Sei Watanabe | 2003-01-28 |
| 6508224 | Handheld type four-cycle engine | Keita Ito, Koji Kasai, Yasuhiro Shimizu, Takeshi Maeda, Yasutake Ryu | 2003-01-21 |
| 6505596 | Handheld type four-cycle engine | Keita Ito | 2003-01-14 |
| 6494176 | Oil mist generation system in handheld type four-cycle engine | Keita Ito, Sei Watanabe | 2002-12-17 |
| 6484679 | Engine valve operation mechanism | Keita Ito, Takeshi Maeda | 2002-11-26 |
| 6427672 | Valve-operating device with breather system in engine | Keita Ito, Shigeki Edamatsu | 2002-08-06 |
| 6422194 | Handheld type four-cycle engine | Keita Ito, Sei Watanabe | 2002-07-23 |
| 6394061 | Lubricating system in a 4-cycle engine | Yasutake Ryu, Souhei Honda, Takanori Tsugekawa | 2002-05-28 |
| 6317853 | Apparatus for making test data and method thereof | Kazunori Hikone, Kazumi Hatayama, Hiromichi Yamada | 2001-11-13 |
| 6250273 | 4-cycle engine | Yasutake Ryu, Keita Ito | 2001-06-26 |
| 6216660 | Lubricating system in a 4-cycle engine | Yasutake Ryu, Souhei Honda, Takanori Tsugekawa | 2001-04-17 |
| 6213081 | Lubricating system in a 4-cycle engine | Yasutake Ryu, Souhei Honda, Takanori Tsugekawa | 2001-04-10 |
| 6213078 | Lubricating system in a 4-cycle engine | Yasutake Ryu, Souhei Honda, Takanori Tsugekawa | 2001-04-10 |