Issued Patents All Time
Showing 1–25 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12308619 | Noble metal tip for spark plug, electrode for spark plug, and spark plug | Tomoo Tanaka, Kengo Hattori | 2025-05-20 |
| 12251923 | Joined body, holding device, and electrostatic chuck | Ryuichi Arakawa, Tomoo Tanaka | 2025-03-18 |
| 9783872 | Electrode material and spark plug | Tomonori Kanemaru, Takehito Kuno, Tomo Tanaka, Toshihiro Uehara | 2017-10-10 |
| 9548593 | Spark plug | Tomonori Kanemaru, Daisuke Sumoyama | 2017-01-17 |
| 9343876 | Spark plug | Takehito Kuno, Tomoo Tanaka, Tomonori Kanemaru | 2016-05-17 |
| 9240677 | Spark plug | — | 2016-01-19 |
| 9109288 | Gas supply system | — | 2015-08-18 |
| 9027524 | Spark plug for internal combustion engine and method of manufacturing the same | Mamoru Musasa, Akira Suzuki | 2015-05-12 |
| 8952601 | Spark plug | Takehito Kuno, Tomoo Tanaka | 2015-02-10 |
| 8922103 | Spark plug | Tomo Tanaka, Norihide Kachikawa | 2014-12-30 |
| 8866370 | Spark plug | Tsutomu Shibata, Takaaki Kikai, Kenji Nunome | 2014-10-21 |
| 8810120 | Spark plug | Daisuke Sumoyama | 2014-08-19 |
| 8664842 | Spark plug | Tomoo Tanaka, Tsutomu Shibata, Takaaki Kikai, Takehito Kuno, Kenji Nunome | 2014-03-04 |
| 8624472 | Spark plug for internal combustion engine | — | 2014-01-07 |
| 8593045 | Spark plug | Tomo Tanaka, Takehito Kuno | 2013-11-26 |
| 8523625 | Method of manufacturing spark plug | Tomonori Kanemaru, Takaaki Kikai, Masahiro Inoue | 2013-09-03 |
| 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, Naomichi Miyashita | 2013-04-02 |
| 8387559 | Semiconductor manufacturing plant | Jiro Hiraiwa, Hiroshi Hayakawa, Tetsuro Tojo, Tsuneyuki Okabe, Takanobu Asano +3 more | 2013-03-05 |
| 8366886 | Fluorogas generator | Noriyuki Tanaka, Jiro Hiraiwa, Hiroshi Hayakawa, Tetsuro Tojo | 2013-02-05 |
| 8344604 | Spark plug for internal combustion engine | Kazuyoshi Torii, Naomichi Miyashita, Mamoru Musasa, Akira Suzuki, Tomoo Tanaka | 2013-01-01 |
| 8164242 | Spark plug | Kenji Nunome, Yoshihiro Nakai, Taichiro Nishikawa, Toru Tanji, Kazuo Yamazaki | 2012-04-24 |
| 8128792 | Fluorine gas generator | Jiro Hiraiwa, Tetsuro Tojo | 2012-03-06 |
| 8038852 | Fluorine gas generator | Tetsuro Tojo, Jiro Hiraiwa, Hitoshi Takebayashi, Yoshitomi Tada, Udai Tanaka | 2011-10-18 |
| 7859177 | Spark plug for internal-combustion engines | Wataru Matsutani | 2010-12-28 |
| RE41944 | Method for manufacturing noble metal electric discharge chips for spark plugs | Wataru Matsutani, Yoshihiro Matsubara | 2010-11-23 |