Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7735219 | Method for machining a board | Kazunori Umeoka, Toru Fujioka, Hideyuki Andou | 2010-06-15 |
| 7157138 | Fiber board | Kenji Ohnishi, Masayuki Okuzawa, Hideyuki Ando, Kazunori Umeoka, Ryo Sugawara +1 more | 2007-01-02 |
| 7045027 | Method of producing a fiber board | Masayuki Okuzawa, Kenji Ohnishi, Hideyuki Ando, Kazunori Umeoka, Bunkai Ryu +2 more | 2006-05-16 |
| 6197414 | Fiberboard and manufacturing method thereof | Shuichi Kawai, Kenji Ohnishi, Ryo Sugawara, Takumi UEDA | 2001-03-06 |
| 5304415 | Sound absorptive material | Yoshitaka Kurihara, Hideyuki Ando, Wakio Yamada, Kazunori Umeoka, Takashi Nakai | 1994-04-19 |