Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12305003 | Polyamic acid having specific composition, varnish, cured product, and composite material | Yoshio Furukawa, Rikio Yokota, Yuichi Ishida | 2025-05-20 |
| 11492446 | Semipreg, prepreg, resin composite material, and production methods thereof | Yoshio Furukawa, Takeshi Chiba, Rikio Yokota, Yuichi Ishida | 2022-11-08 |
| 10526450 | Terminally modified imide oligomer, varnish, cured products thereof, film, and imide prepreg and fiber-reinforced composite material using these | Masahiko Miyauchi, Rikio Yokota, Yuichi Ishida | 2020-01-07 |
| 9844865 | Driver tool | Shinji Hirabayashi, Tadasuke Matsuno | 2017-12-19 |
| 8148000 | Power tool and protector for power tool | Munetoshi Goto, Shinsuke Okuda | 2012-04-03 |
| 7380612 | Electric power tool | — | 2008-06-03 |
| 7380613 | Electric power tool | — | 2008-06-03 |
| 7308948 | Electric power tool | — | 2007-12-18 |
| 7131503 | Impact driver having a percussion application mechanism which operation mode can be selectively switched between percussion and non-percussion modes | Hidenori Nagasaka | 2006-11-07 |
| 7124839 | Impact driver having an external mechanism which operation mode can be selectively switched between impact and drill modes | Yoshihiro Ito | 2006-10-24 |
| D520834 | Portable electric driver | Yuji Yamamoto | 2006-05-16 |
| 6523658 | Clutch mechanism for use in rotary tools having screw-driving and drill modes | Takao Kuroyanagi | 2003-02-25 |
| 6213224 | Electric power tool with enhanced strength to axially-applied external force | Shingo Umemura, Shinsuke Mori | 2001-04-10 |
| 6142242 | Percussion driver drill, and a changeover mechanism for changing over a plurality of operating modes of an apparatus | Michio Okumura, Takao Kuroyanagi, Hidenori Ito | 2000-11-07 |
| D375439 | Cordless circular saw | Norifumi Niwa | 1996-11-12 |