Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5636256 | Apparatus used for total reflection fluorescent X-ray analysis on a liquid drop-like sample containing very small amounts of impurities | Tuyoshi Matumura, Hisashi Muraoka | 1997-06-03 |
| 5632868 | Method and apparatus for generating ozone and methods of its use | Minoru Harada, Ryoichi Shinjo, Manabu Tsujimura, Rempei Nakata, Naruhiko Kaji +1 more | 1997-05-27 |
| 5528648 | Method and apparatus for analyzing contaminative element concentrations | Fumio Komatsu, Ayako Shimazaki | 1996-06-18 |
| 5497407 | Contaminating-element analyzing method | Fumio Komatsu, Ayako Shimazaki | 1996-03-05 |
| 5490194 | Method and apparatus for analyzing contaminative element concentrations | Fumio Komatsu, Ayako Shimazaki | 1996-02-06 |
| 5457726 | Analyzer for total reflection fluorescent x-ray and its correcting method | — | 1995-10-10 |
| 5430786 | Element analyzing method | Fumio Komatsu, Ayako Shimazaki | 1995-07-04 |
| 5422925 | Contaminating-element analyzing method and apparatus of the same | Fumio Komatsu, Ayako Shimazaki | 1995-06-06 |
| 4954141 | Polishing pad for semiconductor wafers | Masahiro Takiyama, Kenichiro Shiozawa | 1990-09-04 |
| 4935039 | Abrasive composition and process for polishing plastic article | Fumio Imai, Yoshinobu Yamaguchi | 1990-06-19 |
| 4929257 | Abrasive composition and process for polishing | Ken Ishitobi, Yosinobu Yamaguchi | 1990-05-29 |
| 4915710 | Abrasive composition and process for polishing | Ken Ishitobi, Yoshinobu Yamaguchi | 1990-04-10 |
| 4902649 | Hard tissue substitute composition | Yoshitaka Kimura, Yuji Furuta, Tadashi Hiraiwa | 1990-02-20 |
| 4883502 | Abrasive composition and process for polishing | Ken Ishitobi | 1989-11-28 |
| 4774068 | Method for production of mullite of high purity | Tadashi Hiraiwa, Eizi Ando | 1988-09-27 |