Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10011890 | Sodium tungstate production method | Akihiko Ikegaya, Yoshiharu Yamamoto | 2018-07-03 |
| 8974674 | Method for producing ammonium tungstate aqueous solution | Hideaki Ito, Yoshiharu Yamamoto, Kazuo Sasaya, Takuya Okuno, Fumiatsu Sato +2 more | 2015-03-10 |
| 4980211 | Article of polyethylene terephthalate resin | Hideo Kushida | 1990-12-25 |
| 4877141 | Pressure resistant bottle-shaped container | Yoshiaki Hayashi, Toyoji Kato, Yukio Koshidaka | 1989-10-31 |
| 4496517 | Process for preparing saturated polyester resin bottles | Harumi Kinoshita, Hideo Kushida, Masao Akutsu, Takuzo Takada, Hiroaki Sugiura | 1985-01-29 |