Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9368942 | Ignition plug and ignition system | Kenji Ban | 2016-06-14 |
| 9316199 | Ignition device and structure for mounting same | Tatsunori Yamada, Kohei Katsuraya | 2016-04-19 |
| 9306374 | Spark plug | Tomokatsu Kashima, Tatsunori Yamada | 2016-04-05 |
| 9263857 | Ignition system | Kohei Katsuraya | 2016-02-16 |
| 9246313 | Ignition system | Kenji Ban, Tatsunori Yamada, Tomokatsu Kashima | 2016-01-26 |
| 9231382 | Plasma ignition device and plasma ignition method | Kohei Katsuraya, Tatsunori Yamada | 2016-01-05 |
| 9169820 | Ignition system | Tatsunori Yamada, Kohei Katsuraya | 2015-10-27 |
| 9035562 | Ignition plug and ignition apparatus | Kohei Katsuraya, Tatsunori Yamada | 2015-05-19 |
| 9016253 | Spark plug for internal combustion engine | Kaori Kishimoto, Hiroyuki Kameda, Tomoaki Aoki | 2015-04-28 |
| 8976504 | Ignition system and spark plug | Kohei Katsuraya | 2015-03-10 |
| 8946977 | Spark plug having fusion zone | Kohei Katsuraya | 2015-02-03 |
| 8928212 | Spark plug | Kenji Ban, Tatsunori Yamada, Tomokatsu Kashima | 2015-01-06 |
| 8907552 | High-frequency plasma spark plug | Kohei Katsuraya | 2014-12-09 |
| 8841828 | Spark plug | Tomoyuki Igarashi, Ryuichi Ohno, Tatsunori Yamada | 2014-09-23 |
| 8841827 | Spark plug with improved resistance to spark-induced erosion of the ground electrode tip | Nobuaki Sakayanagi | 2014-09-23 |
| 8640666 | Spark plug for internal combustion engine | Hiroyuki Kameda, Kaori Kishimoto, Tomoaki Kato | 2014-02-04 |
| 8629605 | Spark plug having shaped insulator | Kohei Katsuraya, Hiroyuki Kameda | 2014-01-14 |
| 8624473 | Spark plug | Nobuaki Sakayanagi | 2014-01-07 |
| 8506341 | Method of manufacturing sparkplugs | Nobuaki Sakayanagi | 2013-08-13 |
| 8487520 | Spark plug and method of manufacturing the same | Nobuaki Sakayanagi | 2013-07-16 |
| 8471448 | High-frequency plasma spark plug | Kohei Katsuraya, Tatsunori Yamada | 2013-06-25 |
| 8466608 | Spark plug and manufacturing method thereof | Kohei Katsuraya | 2013-06-18 |
| 8410175 | Anticancer effect enhancer | Hiroyasu Yasuda, Mutsuo Yamaya, Hidetada Sasaki | 2013-04-02 |
| 8354782 | Spark plug | Nobuaki Sakayanagi | 2013-01-15 |
| 8298030 | Spark plug manufacturing method, and spark plug | Satoshi Nagasawa | 2012-10-30 |