Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10857850 | Stabilizer bushing | Yuji Homma, Masami Endo, Norimasa Kuki, Daiki Mimpo, Ryusuke Yamada | 2020-12-08 |
| 6074496 | High-strength oil-tempered steel wire with excellent spring fabrication property and method for producing the same | Hiroshi Yarita, Shouichi Suzuki, Takashi Otowa | 2000-06-13 |
| 6027577 | Manufacturing method of valve spring superior in durability | Masaaki Mikura, Takashi Otowa | 2000-02-22 |
| 6017641 | Coil spring resistive to delayed fracture and manufacturing method of the same | Toshinori Aoki, Takashi Otowa | 2000-01-25 |
| 5897717 | High strength spring steel and process for producing same | Masayuki Hashimura, Masato Yanase, Takashi Otowa, Hiroshi Yarita, Ikuo Ochiai +2 more | 1999-04-27 |