Issued Patents All Time
Showing 76–94 of 94 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4636253 | Diamond sintered body for tools and method of manufacturing same | Tetsuo Nakai | 1987-01-13 |
| 4632817 | Method of synthesizing diamond | Kazuo Tsuji, Akito Yoshida | 1986-12-30 |
| 4617181 | Synthetic diamond heat sink | Shuichi Satoh | 1986-10-14 |
| 4610699 | Hard diamond sintered body and the method for producing the same | Tsutomu Nakamura | 1986-09-09 |
| 4505746 | Diamond for a tool and a process for the production of the same | Tetsuo Nakai | 1985-03-19 |
| 4492846 | Process for the production of bonded hard alloys | Akio Hara, Masaya Miyake | 1985-01-08 |
| 4442180 | Sintered body for use in a cutting tool and the method for producing the same | Akio Hara | 1984-04-10 |
| 4425315 | Diamond sintered compact wherein crystal particles are uniformly orientated in the particular direction and the method for producing the same | Kazuo Tsuji, Akio Hara | 1984-01-10 |
| 4412980 | Method for producing a diamond sintered compact | Kazuo Tsuji, Akio Hara | 1983-11-01 |
| 4403015 | Compound sintered compact for use in a tool and the method for producing the same | Tetsuo Nakai, Akio Hara | 1983-09-06 |
| 4389465 | Sintered compact for use in a tool and the method for producing the same | Tetsuo Nakai, Yuichiro Kono, Akio Hara | 1983-06-21 |
| 4374900 | Composite diamond compact for a wire drawing die and a process for the production of the same | Akio Hara | 1983-02-22 |
| 4370149 | Diamond compact for a wire drawing die and a process for the production of the same | Akio Hara | 1983-01-25 |
| 4343651 | Sintered compact for use in a tool | Akio Hara | 1982-08-10 |
| 4334928 | Sintered compact for a machining tool and a method of producing the compact | Akio Hara | 1982-06-15 |
| 4333986 | Diamond sintered compact wherein crystal particles are uniformly orientated in a particular direction and a method for producing the same | Kazuo Tsuji, Akio Hara | 1982-06-08 |
| 4303442 | Diamond sintered body and the method for producing the same | Akio Hara | 1981-12-01 |
| 4293618 | Sintered body for use in a cutting tool and the method for producing the same | Akio Hara | 1981-10-06 |
| 4231762 | Method of producing a sintered diamond compact | Akio Hara | 1980-11-04 |