Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5030367 | Water-dispersion lubricant of graphite, particulate resin and high molecular weight polybasic acid salt | Megumu Tanaka, Koji Sakura, Tomoyuki Hirakawa, Yasuhiro Sotani, Fuyuhiko Kajiyama +4 more | 1991-07-09 |
| 4953950 | Apparatus for producing ultra-high power ultra-high density laser beam | Yoshiaki Arata | 1990-09-04 |
| 4828357 | Apparatus for producing ultra-high power, ultra-high density laser beam | Yoshiaki Arata | 1989-05-09 |
| 4711733 | Lubricant for the production of seamless tubes | Noboru Kanda, Kenzou Yokoyama, Ken Aoki, Shinji Akita, Masayuki Hatanaka | 1987-12-08 |