Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5966952 | Heat pump system with balanced total heating-emitting and absorbing capacities and method for stable heat pumping operation | Yukiyoshi Takiguchi, Ryosuke Sugita | 1999-10-19 |
| 5894735 | Heat pump system using energy-supplying mechanism to control refrigerant pressure | Hideyuki Ohashi, Manabu Ito | 1999-04-20 |
| 5799867 | Engine-driven heat pump apparatus and method for stable operation of heat pump | — | 1998-09-01 |
| 5765380 | Air-conditioning apparatus using radiation heat control system and method for stable air-conditioning operation | Hideyuki Ohashi, Katsuyuki Nagura | 1998-06-16 |
| 5732564 | Heat pump apparatus and method for stable operation with inhibition of foaming | Hirofumi Yoshihara | 1998-03-31 |
| 5632442 | Engine-driven heat pump apparatus and method for stable operation of heat pump | Makoto Oguri | 1997-05-27 |
| 5236030 | Pneumatic tire with inner liner of ultra high molecular weight polyethylene film and method of making the same | Hiroshi Hirakawa, Masao Inoue | 1993-08-17 |
| 5227424 | Rubber composition for use as a tire tread | Akinori Tokieda, Shinji Kawakami, Yasushi Kikuchi, Yoshinori Hunayama | 1993-07-13 |
| 5221385 | Pneumatic radial tire with noise suppressing rubber sheet in the bead region | Ryoji Hanada | 1993-06-22 |
| 4819704 | Radial tire having reduced ply steer | Shinji Kawakami, Ryoji Hanada | 1989-04-11 |
| 4748168 | Rubber compositions for tire treads | Shinji Kawakami, Takekazu Inoue, Yasuhiro Ishikawa, Hiroshi Hirakawa | 1988-05-31 |
| 4737079 | Variable capacity wobble plate compressor | Juetsu Kurosawa | 1988-04-12 |
| 4635693 | Pneumatic tire base-cap tread | Asahiro Ahagon, Toshio Kobayashi, Kazuhiro Yamada, Seiichi Doi | 1987-01-13 |
| 4567225 | Rubber composition for tire treads | Tetsuya Mizoguchi, Kinya Kawakami, Asahiro Ahagon | 1986-01-28 |
| 4342670 | Process for preparing rubber compositions for tire treads | Asahiro Ahagon, Hiroshi Hirakawa | 1982-08-03 |
| 4323485 | Rubber compositions for tire treads having low rolling resistance | Asahiro Ahagon, Kazuo Miyasaka, Hiroshi Hirakawa | 1982-04-06 |
| 4309318 | Tread compositions for tires having low rolling resistance | Asahiro Ahagon, Hiroshi Hirakawa, Kazuo Miyasaka | 1982-01-05 |