Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12220791 | Impact tool | Ryunosuke Kumagai, Tokuo HIRABAYASHI, Hidenori Nagasaka | 2025-02-11 |
| 11305406 | Power tool having hammer mechanism | Yuta Araki, Hidenori Nagasaka | 2022-04-19 |
| 11118546 | Engine intake system | Ken Yoshida, Masahiko Tanisho, Nozomu Hachiya, Kouichi Shimizu | 2021-09-14 |
| 11045926 | Impact tool | Ryunosuke Kumagai, Tokuo HIRABAYASHI, Hidenori Nagasaka | 2021-06-29 |
| 10213907 | Impact tool | Ryunosuke Kumagai, Tokuo HIRABAYASHI, Hidenori Nagasaka | 2019-02-26 |
| 10161301 | Exhaust device for supercharged engine | Atsuhiro Hatabu, Hideya Horii | 2018-12-25 |
| 10132232 | Supercharging device for engine | Hidenari Kondo | 2018-11-20 |
| 9737984 | Power tool | Hirokatsu Yamamoto, Takaaki OSADA | 2017-08-22 |
| 9643300 | Impact tool | Ryunosuke Kumagai, Tokuo HIRABAYASHI, Hidenori Nagasaka | 2017-05-09 |
| 9605352 | Cation exchange membrane, electrolysis vessel using the same and method for producing cation exchange membrane | Hiroyuki Kameyama, Yoshifumi KADO | 2017-03-28 |
| 9434063 | Handle portion of hand-held electric tool | Tomoyuki Kondo, Miyabi Ito, Eiji Kondo | 2016-09-06 |
| 9133557 | Cation exchange membrane, electrolysis vessel using the same and method for producing cation exchange membrane | Hiroyuki Kameyama, Yoshifumi KADO | 2015-09-15 |
| 9045270 | Caulking guns | Kazuya Kimura, Tokuo HIRABAYASHI | 2015-06-02 |
| 8857535 | Oil pulse rotary tool | — | 2014-10-14 |
| 8607893 | Impact tool with a protecting cover | Ryunosuke Kumagai, Hidenori Nagasaka | 2013-12-17 |
| 8596377 | Handle portion of hand-held electric tool | Tomoyuki Kondo, Miyabi Ito, Eiji Kondo | 2013-12-03 |
| 8490732 | Electric wheeled apparatus powered by battery packs | Ryunosuke Kumagai, Kenichi Kawai | 2013-07-23 |
| 8353364 | Handle portion of hand-held electric tool | Tomoyuki Kondo, Miyabi Ito, Eiji Kondo | 2013-01-15 |
| 8069929 | Impact tool | Hidenori Nagasaka, Hiroshi Otsuka | 2011-12-06 |
| D585714 | Portable electric driver | Shinsuke Okuda | 2009-02-03 |
| 7452972 | Nucleic acids and proteins showing increased expression dose under salt stress | Kazuyoshi Takeda, Kazutoshi Ito | 2008-11-18 |
| 7183398 | Nucleic acids and proteins showing increased expression dose under salt stress | Kazuyoshi Takeda, Kazutoshi Ito | 2007-02-27 |
| D527592 | Power wrench | Naohiro Hayakawa, Yuji Sakakibara, Taiju Tsuboi | 2006-09-05 |
| D494435 | Rechargeable impact driver | Naohiro Hayakawa | 2004-08-17 |
| 6725945 | Impact tool with improved operability | Hidenori Nagasaka | 2004-04-27 |