Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4748138 | Highly toughened, sintered mass of zirconia | Masakazu Watanabe, Satoshi Iio | 1988-05-31 |
| 4668452 | Process for producing silicon carbide heating elements | Masakazu Watanabe, Akiyasu Okuno, Shunkichi Nozaki, Isamu Fukuura | 1987-05-26 |
| 4626517 | High toughness sintered bodies | Masakazu Watanabe, Satoshi Iio | 1986-12-02 |
| 4626518 | Method for manufacturing high toughness sintered bodies | Masakazu Watanabe, Satoshi Iio | 1986-12-02 |
| 4521358 | Process for the production of silicon nitride sintered bodies | Kazunori Miura, Yoshinori Hattori | 1985-06-04 |
| 4511402 | Sintered silicon nitride products and processes for fabrication thereof | Kazunori Miura, Yoshinori Hattori | 1985-04-16 |
| 4499192 | Silicon nitride sintered products having high corrosion resistance and process for production thereof | Toru Shimamori, Yoshinori Hattori | 1985-02-12 |
| 4440707 | Process for producing silicon nitride sintered products having high toughness | Toru Shimamori, Yoshinori Hattori | 1984-04-03 |
| 4375517 | Sintered cubic boron nitride and process for producing the same | Masakazu Watanabe, Akiyasu Okuno, Isamu Fukuura | 1983-03-01 |
| 4336216 | Process for producing silicon carbide heating elements | Masakazu Watanabe, Akiyasu Okuno | 1982-06-22 |
| 4304576 | Silicon nitride ceramic tools and a process for their production | Yoshinori Hattori, Masayuki Akatsuka, Isamu Fukuura | 1981-12-08 |
| 4248813 | Process for producing high density sintered products | Yoshinori Hattori, Mitsuyoshi Kawamura | 1981-02-03 |
| 4216021 | High strength silicon nitride sintered material | Yoshinori Hattori | 1980-08-05 |