Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6680129 | Steel composition | Yumin Wang, Yoshito Hanayama, Doug Fornell, Kunihiko Mishima | 2004-01-20 |
| 6676550 | Blade tensioner | — | 2004-01-13 |
| 6641496 | Blade tensioner | — | 2003-11-04 |
| 6612953 | Blade tensioner | — | 2003-09-02 |
| 6607850 | Hard steel articles | Yumin Wang, Yoshito Hanayama, Doug Fornell, Kunihiko Mishima | 2003-08-19 |
| 6582765 | Carbide coated steel articles and method of making them | Yumin Wang, Yoshito Hanayama, Doug Fornell, Kunihiko Mishima | 2003-06-24 |
| 6524202 | Blade-type chain tensioner | Shinji Tsuruta | 2003-02-25 |
| 6440020 | Blade-type chain tensioner | — | 2002-08-27 |
| 6435993 | Hydraulic chain tensioner with vent device and pressure relief valve | — | 2002-08-20 |
| 6364796 | Blade chain tensioner | Kensuke Nakamura, Ryohei Adachi, Shinji Tsuruta | 2002-04-02 |
| 6358168 | Hydraulic tensioner with seal cap forming an external oil reservoir | — | 2002-03-19 |
| 6352487 | Hydraulic chain tensioner with directional vent device | — | 2002-03-05 |
| 5935031 | Hydraulic tensioner having an air vent channel | — | 1999-08-10 |
| 5879256 | Hydraulic tensioner having a piston with a pressure relief valve and grooved tip | — | 1999-03-09 |
| 5860881 | Hydraulic tensioner having an internal rack mechanism | — | 1999-01-19 |
| 5842943 | Hydraulic tensioner having an oil reservoir sponge member | — | 1998-12-01 |
| 5803854 | Silent chain having a sheared link bearing surface | Kensuke Nakamura, Kazushige Yakubo, Yoshiyuki Ohtaka | 1998-09-08 |
| 5720682 | Tensioner arm and chain guide with passages for oil drainage | — | 1998-02-24 |
| 5700215 | Hydraulic tensioner with piston retention stop | Naoji Sakamoto | 1997-12-23 |
| 5601505 | Hydraulic tensioner | — | 1997-02-11 |