Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8046916 | Method of, and apparatus for, manufacturing metallic bellows | Yoshitoshi Hagiwara, Tetsuaki Nakayama | 2011-11-01 |
| 6575198 | Method of connecting two elongated portions of metallic plate, method of manufacturing exhaust pipe of two-passage construction, and exhaust pipe of two-passage construction | Hiroto Yanagibayashi, Hirokazu Shirai, Akihiro Suzuki, Noriyuki Sato, Takeshi Sasagase +5 more | 2003-06-10 |
| 6360782 | Exhaust pipe assembly of two-passage construction | Akihiro Suzuki, Kazuhiro Furuhashi, Hiroto Yanagibayashi, Kazuo Ishii, Takeshi Munemura +2 more | 2002-03-26 |
| 6070695 | Silencer | Akihiko Ohtaka, Hirofumi Ogawa | 2000-06-06 |
| 5670756 | Silencer | Akihiko Ohtaka, Shigeo Kimura, Taketoshi Houjou, Kazuya Nimiya | 1997-09-23 |