Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11737177 | Induction heating coil and its manufacturing method | Takeshi GOGAMI | 2023-08-22 |
| 10894523 | Crash box and its manufacturing method | Hiroyuki Ikuta, Yu Takanezawa, Rikuto Takagi | 2021-01-19 |
| 10300559 | Laser drilling method and apparatus with radiation output changes in a radial direction during drilling of a workpiece | Natsuki Sugiyama, Akio Sato, Kenji Kidera, Masaru Setodoi, Taku Yamaguchi | 2019-05-28 |
| 10001101 | Fuel injection valve | Natsuki Sugiyama, Akio Satou, Masahiko Asano, Yasuo Kinoshita, Masao Nakayama +4 more | 2018-06-19 |
| 5962957 | Spark plug for internal combustion engine | Yutaka Tanaka, Minoru Ando | 1999-10-05 |
| 5829587 | Package box for a spark plug | Yoshiaki Saiki | 1998-11-03 |
| 5760533 | Spark plug for an internal combustion engine | Yoshiaki Saiki, Minoru Ando | 1998-06-02 |
| 5239225 | Spark plug for use in internal combustion engine | Toru Moriya, Tunekazu Enomoto | 1993-08-24 |
| 5109178 | Spark plug for internal combustion engine | Akihiro Toya, Akihisa Harada, Eigo Goto, Makoto Sugimoto, Toru Moriya | 1992-04-28 |
| 4814665 | Center electrode structure for spark plug | Akio Sakura, Junichi Kagawa | 1989-03-21 |
| 4808135 | Center electrode structure for spark plug | Akio Sakura, Junichi Kagawa | 1989-02-28 |
| 4224554 | Spark plug having a low noise level | Kanemitsu Nishio, Shunichi Takagi | 1980-09-23 |
| 4191155 | Internal combustion engine ignition noise preventing device | Kanemitsu Nishio, Takashi Suzuki, Junji Sunohara | 1980-03-04 |