Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5128092 | Method for shaping tetrafluoroethylene resin pipe | Takehiro Yoshida, Yasuo Yoda, Tomokazu Hattori | 1992-07-07 |
| 4990544 | Gasket composition comprising fibrillated PTFE | Zenji Shimura, Takehiro Yoshida, Kenji Tadakuma, Shinzaburo Suzuki, Norio Takada +2 more | 1991-02-05 |
| 4839221 | Gasket containing (I) a sheet composition comprising (A) PTFE (B) inorganic powder (C) clay mineral and (II) a metal support for the sheet | Zenji Shimura, Takehiro Yoshida, Kenji Tadakuma, Shinzaburo Suzuki, Norio Takada +2 more | 1989-06-13 |
| 4533581 | Highly heat-resistant disc roll | Shigeo Take, Masazumi Akase, Isao Terada | 1985-08-06 |
| 4416043 | Disc roll | Susumu Aoki, Shigeo Take, Masazumi Akase | 1983-11-22 |
| 4334931 | Method for producing asbestos free machinable calcium silicate high heat-resistant material | Kazuo Kubota, Hisanori Yokoo, Mitsuo Yamamoto | 1982-06-15 |