Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11363705 | Extreme ultraviolet light generation apparatus, extreme ultraviolet light generation system, and electronic device manufacturing method | Takayuki OSANAI, Atsushi Ueda, Koichiro Koge, Akihiro Ohsawa, Yoshiaki Yoshida +2 more | 2022-06-14 |
| 9528244 | Work vehicle | Mitsuo Yabe, Akihiro Ohsawa, Teruyuki Matsuki, Yoshiaki Yoshida | 2016-12-27 |
| 9523182 | Work vehicle | Mitsuo Yabe, Akihiro Ohsawa, Teruyuki Matsuki, Yoshiaki Yoshida, Yosuke Yamagoe +2 more | 2016-12-20 |
| 9353503 | Work vehicle | Mitsuo Yabe, Akihiro Ohsawa, Teruyuki Matsuki, Yoshiaki Yoshida, Yosuke Yamagoe +2 more | 2016-05-31 |
| D451113 | Nozzle for a plasma arc torch | Toru Shiina, Yoshitaka Niigaki, Iwao Kurokawa | 2001-11-27 |
| D446795 | Nozzle for a plasma arc torch | Toru Shiina, Yoshitaka Niigaki, Iwao Kurokawa | 2001-08-21 |
| 6255618 | Method and apparatus for spot welding a work having a plurality of welding materials placed on top of each other by boring a hole to release vapors | Yohsuke IMAI, Yoshitaka Niigaki, Iwao Kurokawa, Kengo Kamiya, Hideto Uematsu | 2001-07-03 |
| D417459 | Electrode for a plasma arc torch | Yosuke Imai, Iwao Kurokawa, Yoshitaka Niigaki, Toru Shiina | 1999-12-07 |
| D414788 | Nozzle for a plasma arc torch | Yosuke Imai, Iwao Kurokawa, Yoshitaka Niigaki, Toru Shiina | 1999-10-05 |
| 5695663 | Plasma cutting method and NC plasma cutting apparatus | Yutaka Nakau | 1997-12-09 |
| 5653895 | Plasma cutting method suitable for cutting thin stainless steel sheet material | — | 1997-08-05 |
| 5614110 | Varying protective gas composition between piercing and cutting with plasma torch | Masahiko Hasegawa | 1997-03-25 |
| 5393952 | Plasma torch for cutting use with nozzle protection cap having annular secondary GPS passage and insulator disposed in the secondary gas passage | Yoshihiro Yamaguchi, Hitoshi Satoh | 1995-02-28 |
| 5218181 | Preventing slag deposits on surface to be piered by plasma cutter | — | 1993-06-08 |
| 5202544 | Method of machining plate materials with a plasma cutter and plasma torch | Makoto Inoue, Kunio Horiai, Yoshihiro Yamaguchi | 1993-04-13 |