| 11183819 |
Spark plug |
Yutaka Yokoyama, Nobuyoshi Araki, Kuniharu Tanaka, Haruki Yoshida, Toshiki Kon +1 more |
2021-11-23 |
| 10777975 |
Spark plug |
Yoshitomo Iwasaki |
2020-09-15 |
| 10751923 |
Spark plug insulator production method, insulator, molding die |
Hirokazu Kurono, Toshitaka Honda, Hiroyuki Hazama, Kuniharu Tanaka, Hiroyuki Kawaji |
2020-08-25 |
| 10637212 |
Method for manufacturing insulator for spark plug |
Hirokazu Kurono, Toshitaka Honda, Hiroyuki Hazama |
2020-04-28 |
| 10431961 |
Spark plug |
Yohei Takeda |
2019-10-01 |
| 10340667 |
Spark plug |
Toshinori Takeichi, Kuniharu Tanaka, Hirokazu Kurono, Haruki Yoshida |
2019-07-02 |
| 10277012 |
Spark plug including a magnetic substance and a conductor disposed thereon |
Kazuhiro Kurosawa, Katsuya Takaoka, Kota Yokoyama, Kuniharu Tanaka, Hirokazu Kurono |
2019-04-30 |
| 10270228 |
Spark plug |
Kazuhiro Kurosawa, Katsuya Takaoka, Kota Yokoyama, Kuniharu Tanaka, Hirokazu Kurono |
2019-04-23 |
| 10205305 |
Spark plug |
Hirokazu Kurono, Jumpei Kita |
2019-02-12 |
| 10153619 |
Spark plug |
Haruki Yoshida, Hirokazu Kurono |
2018-12-11 |
| 10153622 |
Spark plug having the thickness of a magnetic member without excessively narrowing an electrode member |
Shoma Tsumagari, Kazuhiro Kurosawa, Katsuya Takaoka, Kuniharu Tanaka |
2018-12-11 |
| 10090646 |
Spark plug |
Katsuya Takaoka, Kazuhiro Kurosawa, Kuniharu Tanaka, Hisashi KOZUKA, Toshitaka Honda +2 more |
2018-10-02 |
| 10084288 |
Spark plug |
Seiji Nakano, Hirokazu Kurono |
2018-09-25 |
| 9997894 |
Spark plug having a resistor element |
Kazuhiro Kurosawa, Katsuya Takaoka, Kuniharu Tanaka |
2018-06-12 |
| 9871352 |
Spark plug |
Seiji Nakano, Kouta Yamauchi |
2018-01-16 |
| 9843167 |
Spark plug |
Yoshitomo Iwasaki |
2017-12-12 |
| 9653888 |
Spark plug |
Yutaka Yokoyama, Kuniharu Tanaka, Katsuya Takaoka, Shun Kondo, Nobuyoshi Araki +6 more |
2017-05-16 |
| 9595814 |
Spark plug |
Takashi KASASHIMA, Katsuya Takaoka, Kazuhiro Kurosawa, Kuniharu Tanaka, Toshitaka Honda +2 more |
2017-03-14 |
| 9590395 |
Spark plug |
Katsuya Takaoka, Kazuhiro Kurosawa, Kuniharu Tanaka, Toshitaka Honda, Hirokazu Kurono +1 more |
2017-03-07 |
| 9466951 |
Spark plug |
Katsuya Takaoka, Hirokazu Kurono, Toshitaka Honda |
2016-10-11 |
| 9385511 |
Spark plug |
Hiroki Takeuchi, Yutaka Yokoyama, Kuniharu Tanaka, Takeshi Mitsuoka, Toshitaka Honda +2 more |
2016-07-05 |
| 9160145 |
Insulator for spark plug and spark plug |
Katsuya Takaoka, Yutaka Yokoyama, Kengo Fujimura, Hiroki Takeuchi, Hirokazu Kurono +3 more |
2015-10-13 |
| 8749125 |
Spark plug |
Katsuya Takaoka, Hirokazu Kurono, Toshitaka Honda |
2014-06-10 |
| 8550865 |
Spark plug manufacturing method |
Toshitaka Honda |
2013-10-08 |
| 8482187 |
Spark plug and process for producing spark plug |
Katsuya Takaoka, Hirokazu Kurono, Toshitaka Honda |
2013-07-09 |
