Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6578684 | Driving force transmission device | Hiroshi Takuno, Hideyuki Saito, Takashi Hosokawa, Yoshiaki Senga | 2003-06-17 |
| 5063738 | Pressure generation and responsive mechanism with high viscous fluid | Hiroaki Asano | 1991-11-12 |
| 5056640 | Torque transmission device for a four-wheel drive vehicle | Shigeo Tanooka, Toshifumi Sakai, Nobunao Morishita | 1991-10-15 |
| 5012908 | Control coupling for torque transmission | Katsuyuki Kobayashi, Masaki Inui, Satoshi Ashida, Keiichi Nakamura | 1991-05-07 |
| 5007885 | Driving torque transmitting device | Shigeo Tanooka, Toshifumi Sakai | 1991-04-16 |
| 4905808 | Torque transmission device for a four-wheel drive vehicle | Tamaki Tomita, Hiroaki Asano, Keiichi Nakamura, Shigeo Tanooka, Toshifumi Sakai +2 more | 1990-03-06 |
| 4817751 | A driving force distribution transmission for vehicles with four-wheel drive | Hiroaki Asano, Keiichi Nakamura, Shigeo Tanooka, Toshifumi Sakai | 1989-04-04 |
| 4605441 | Ink composition for indicating progress and completion of vulcanization of rubber products | Yoshiaki Masuda, Hidetoshi Fukuo | 1986-08-12 |
| 4256494 | Erasable ink composition for writing on an impervious surface | Keiko Shioi, Kimio Murakami | 1981-03-17 |