Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12202057 | Drill and method of producing drilled product | Masao Watanabe, Hiroyuki Sugawara, Tatsuo Nakahata, Ryohei Ono, Shinya Matsuo | 2025-01-21 |
| 11969803 | Drill and method of producing drilled product | Masao Watanabe, Ryohei Ono, Tatsuo Nakahata, Hiroyuki Sugawara, Shinya Matsuo | 2024-04-30 |
| 10252386 | Tool driving device, tool driving method, and tool feeding mechanism for tool driving device | Manabu Saito, Tatsuo Nakahata, Toshio Nishino, Masao Watanabe | 2019-04-09 |
| 9981322 | Drill and drilling method for workpiece | Tatsuo Nakahata, Manabu Saito, Masanori Hosoi | 2018-05-29 |
| 9827617 | Drill and method of manufacturing drill | Manabu Saito, Tatsuo Nakahata, Masao Watanabe, Toshio Nishino | 2017-11-28 |
| 9669472 | Drilling apparatus and drilling method | Hideaki Miyajima, Takashi Murakami, Tatsuo Nakahata | 2017-06-06 |
| 9656328 | Cutting tool | Manabu Saito, Tatsuo Nakahata, Junji Tsuchiya, Masao Watanabe, Eiji Hashimoto +1 more | 2017-05-23 |
| 9180531 | Drill and drilling method for workpiece | Tatsuo Nakahata, Manabu Saito, Masanori Hosoi | 2015-11-10 |
| 9168593 | Drill | Manabu Saito, Tatsuo Nakahata | 2015-10-27 |
| 9009937 | Sleeve removal tool and sleeve removal method | Manabu Saito, Tatsuo Nakahata | 2015-04-21 |
| 8876442 | Rotary cutter | Manabu Saito, Tatsuo Nakahata | 2014-11-04 |
| 8734067 | Drill | Manabu Saito, Tatsuo Nakahata, Junji Tsuchiya, Eiji Hashimoto, Hirofumi Higashiwaki | 2014-05-27 |
| 8479613 | Fastening tool | Manabu Saito, Tatsuo Nakahata | 2013-07-09 |
| 6130502 | Cathode assembly, electron gun assembly, electron tube, heater, and method of manufacturing cathode assembly and electron gun assembly | Kazuo Kobayashi, Takashi Sudo, Toshiharu Higuchi, Sakae Kimura, Shinpei Koshigoe +1 more | 2000-10-10 |
| 5219306 | Vibration absorbing structure of outboard motor | — | 1993-06-15 |
| 5091856 | Control apparatus for automobiles | Taiji Hasegawa, Masaaki Fujisawa, Masahide Sakamoto, Toshio Ishii | 1992-02-25 |
| 4951212 | Automobile driving guide apparatus | Nobuo Kurihara, Minoru Osuga, Akira Endo | 1990-08-21 |
| 4941854 | Boarding sensor and controller for small watercraft | Yoshiaki Uchida | 1990-07-17 |
| 4872858 | Outboard jet propulsion device | Junichi Hasegawa | 1989-10-10 |
| 4813895 | Forward-reverse for marine propulsion device of a water-jet type | — | 1989-03-21 |
| 4790781 | Lubricating construction for marine propulsion device of water jet type | — | 1988-12-13 |