Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6220932 | Method of producing a double-sided belt structure and belt structure made according to the method | — | 2001-04-24 |
| 6131435 | Method of estimating remaining life of a power transmission belt | Koji Kitahama | 2000-10-17 |
| 5954606 | Power transmission belt with canvas layer | Masashi Tamura | 1999-09-21 |
| 5753369 | Power transmission belt | Masahiko Kawashima, Koji Kitahama | 1998-05-19 |
| 5714024 | Marking material for a power transmission belt/belt sleeve and method of making a power transmission belt/belt sleeve using the marking material | Toshio Tomiyama | 1998-02-03 |
| 5498213 | Power transmission belt | — | 1996-03-12 |
| 5427637 | V-ribbed belt and method of fabricating the same | Toshimi Kumazaki, Masahiko Kawashima | 1995-06-27 |
| 5415594 | V-ribbed belt | Koji Kitahama, Masahiko Kawashima | 1995-05-16 |
| 5413538 | Power transmission belt | — | 1995-05-09 |
| 5362280 | Power transmission system | Hideo Hirai, Susumu Yamakawa | 1994-11-08 |
| 5344369 | V-belt for power transmission | Koji Kitahama, Masahiko Kawashima | 1994-09-06 |
| 5335456 | Method of forming rib surfaces on a power transmission belt | — | 1994-08-09 |
| 5250010 | V-ribbed belt | Takashi Hamada, Masayoshi Nakajima | 1993-10-05 |
| 5230668 | V-ribbed belt | Masahiko Kawashima, Koji Kitahama | 1993-07-27 |
| 5224905 | Power transmission belt | — | 1993-07-06 |
| 5219902 | Method of bonding a hydrogenated nitrile rubber composition with fibers and articles | Masayoshi Nakajima, Takashi Hamada | 1993-06-15 |
| 5197928 | V-ribbed belt having protruding fibers | Toshimi Kumazaki, Masahiko Kawashima | 1993-03-30 |
| 5120281 | Power transmission belt | Toshimi Kumazaki, Masahiko Kawashima | 1992-06-09 |
| 5073098 | Vulcanizing flexible jacket used in power transmission belt manufacture | — | 1991-12-17 |
| 4931118 | Method of manufacturing multiribbed belts | Koji Kitahama, Toshimi Kumasaki | 1990-06-05 |
| 4758213 | Antistatic driving belt | Hiroyuki Tanaka | 1988-07-19 |
| 4737138 | Fabric-covered cogged belt | Takahiko Komai, Takeshi Hamura | 1988-04-12 |
| 4702729 | Timing belt with controlled friction backside ribs | Hiroyuki Tanaka, Eiichi Takami, Mitsunobu Higashi, Toshimi Kumasaki | 1987-10-27 |
| 4208500 | Acrylic copolymer vulcanizates | Tadao Matsuo, Satoshi Mashimo, Eiichi Takami, Hiroshi Namizashi, Etsuji Uenoyama +1 more | 1980-06-17 |