Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12283796 | Spark plug | Natsuki Kurimoto, Naoki Sakade, Kanji Higuchi | 2025-04-22 |
| 9190812 | Spark plug and assembling structure thereof | Yuuichi Nakano | 2015-11-17 |
| 9010765 | Gasket and automotive component | Mamoru Musasa | 2015-04-21 |
| 8766521 | Spark plug | Hirotoshi Yoshizaki, Mamoru Musasa | 2014-07-01 |
| 8664843 | Spark plug | Yuichi Yamada, Hiroaki Kuki, Jiro Kyuno | 2014-03-04 |
| 8664844 | Spark plug having a substantially columnar electrode tip welded to a component thereof | Mamoru Musasa | 2014-03-04 |
| 8624475 | Spark plug | Takuya Shimamura, Tomoaki Kato, Jiro Kyuno | 2014-01-07 |
| 8476817 | Spark plug | Mamoru Musasa, 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, Mamoru Musasa, Osamu Yoshimoto | 2013-04-02 |
| 8378560 | Spark plug | Akira Suzuki, Kazuyoshi Torii | 2013-02-19 |
| 8344604 | Spark plug for internal combustion engine | Kazuyoshi Torii, Mamoru Musasa, Akira Suzuki, Tomoo Tanaka, Osamu Yoshimoto | 2013-01-01 |
| 8294344 | Spark plug and weld metal zone | Kazuyoshi Torii, Akira Suzuki, Mamoru Musasa, Kenji Moritani | 2012-10-23 |
| 8106572 | Spark plug and process for producing the spark plug | Tomoo Tanaka | 2012-01-31 |
| 8044562 | Spark plug | Mamoru Musasa, Kazuyoshi Torii | 2011-10-25 |
| 6724133 | Spark plug with nickel alloy electrode base material | Yoshihiro Matsubara, Wataru Matsutani, Masayuki Segawa, Hiroaki Kuki, Mamoru Musasa | 2004-04-20 |
| 6472801 | Spark plug with a corrosion impeding layer | Yoshihiro Matsubara, Shoichiro Ito, Yuji Hirano, Hiroaki Kuki | 2002-10-29 |