Issued Patents All Time
Showing 1–25 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9027524 | Spark plug for internal combustion engine and method of manufacturing the same | Akira Suzuki, Osamu Yoshimoto | 2015-05-12 |
| 9010765 | Gasket and automotive component | Naomichi Miyashita | 2015-04-21 |
| 8766521 | Spark plug | Hirotoshi Yoshizaki, Naomichi Miyashita | 2014-07-01 |
| 8736154 | Spark plug | Akira Suzuki | 2014-05-27 |
| 8664844 | Spark plug having a substantially columnar electrode tip welded to a component thereof | Naomichi Miyashita | 2014-03-04 |
| 8638029 | Spark plug for internal combustion engine and method of manufacturing the spark plug | Kazuyoshi Torii, Akira Suzuki | 2014-01-28 |
| 8633640 | Spark plug | Jiro Kyuno, Akira Suzuki | 2014-01-21 |
| 8531094 | Spark plug having self-cleaning of carbon deposits | Akira Suzuki, Tomoaki Kato, Jiro Kyuno | 2013-09-10 |
| 8517786 | Method of producing a spark plug | Akira Suzuki | 2013-08-27 |
| 8519606 | Spark plug for internal combustion engine and method of manufacturing spark plug | Akira Suzuki, Mai Nakamura | 2013-08-27 |
| 8476817 | Spark plug | Naomichi Miyashita, Akira Suzuki, Kazuyoshi Torii, Tomoaki Kato | 2013-07-02 |
| 8410673 | Spark plug having a ground electrode of specific alloy composition to which a noble metal tip is joined | Kazuyoshi Torii, Tomoo Tanaka, Akira Suzuki, Naomichi Miyashita, Osamu Yoshimoto | 2013-04-02 |
| 8395307 | Spark plug for preventing accumulation of carbon on an insulator | Akira Suzuki, Tomoaki Kato, Toshitaka Honda | 2013-03-12 |
| 8365694 | Easily removable spark plug | Akira Suzuki, Yuichi Nakano | 2013-02-05 |
| 8344604 | Spark plug for internal combustion engine | Kazuyoshi Torii, Naomichi Miyashita, Akira Suzuki, Tomoo Tanaka, Osamu Yoshimoto | 2013-01-01 |
| 8324791 | Spark plug for internal combustion engine | Hiroyuki Kameda | 2012-12-04 |
| 8299694 | Spark plug having improved adhesion between resistor and glass sealing layer | Akira Suzuki, Tomoaki Kato, Tsutomu Shibata | 2012-10-30 |
| 8294344 | Spark plug and weld metal zone | Kazuyoshi Torii, Akira Suzuki, Naomichi Miyashita, Kenji Moritani | 2012-10-23 |
| 8207657 | Spark plug and method of manufacturing the same | Akira Suzuki | 2012-06-26 |
| 8143773 | Spark plug | Akira Suzuki, Tomoaki Kato | 2012-03-27 |
| 8098004 | Method for producing spark plug and spark plug | Tomoaki Kato, Kazuyoshi Torii | 2012-01-17 |
| 8052495 | Method for producing spark plug by projection welding and spark plug thereof | Tomoaki Kato, Kazuyoshi Torii | 2011-11-08 |
| 8044562 | Spark plug | Naomichi Miyashita, Kazuyoshi Torii | 2011-10-25 |
| 8033880 | Method for manufacturing spark plug | Akira Suzuki, Mai Nakamura | 2011-10-11 |
| 7944134 | Spark plug with center electrode having high heat dissipation property | Jiro Kyuno, Akira Suzuki, Mai Moribe, Yuichi Nakano | 2011-05-17 |