Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10159153 | Entry sheet for drilling | Takayuki Kamei, Yousuke Matsuyama | 2018-12-18 |
| 9986644 | Process for the production of entry sheet for drilling and entry sheet | Yousuke Matsuyama, Reiki Akita | 2018-05-29 |
| 9826643 | Entry sheet for drilling and drilling method | Noriaki Sugimoto, Katsutoshi Ihara | 2017-11-21 |
| 9211592 | Lubricant sheet for drilling and method of drilling | Nobuyuki Ikeguchi, Shinya Komatsu, Toshihiko Kobayashi, Mitsuo Ejiri | 2015-12-15 |
| 7641934 | Process for the production of entry sheet for drilling and use thereof | Reiki Akita, Shinya Komatsu | 2010-01-05 |
| 6866450 | Entry sheet for drilling and method for drilling hole | Shinya Komatsu, Norio Nagai | 2005-03-15 |
| 5457174 | Method for preparing polycarbonates by transesterification in a steel reactor | Katsushige Hayashi, Mitsuhiko Masumoto, Masayuki Nakajima, Masahiko Ishikawa, Atsushi Hirashima | 1995-10-10 |