| 7309848 |
Sealing structure of ceramic heater |
Makoto Shirai, Kenji Fukaya |
2007-12-18 |
| 7078659 |
Corrosion resistance structure of ceramic heater and gas sensor equipped with same |
Taiji Yokoyama, Makoto Shirai |
2006-07-18 |
| 6891318 |
Structure of spark plug designed to provide higher durability and fabrication method thereof |
Tsunenobu Hori, Akihiko Mizutani, Hironori Osamura |
2005-05-10 |
| 6676468 |
Method of producing a spark plug |
Hiroya Ishiguro, Toshikazu Shimizu |
2004-01-13 |
| 6466123 |
Temperature sensor and method of manufacturing same |
Kaoru Kuzuoka |
2002-10-15 |
| 5563469 |
Spark plug for internal combustion engine |
Yasuyuki Sato, Kiyoaki Tanaka |
1996-10-08 |
| 5557158 |
Spark plug and method of producing the same |
Keiji Kanao |
1996-09-17 |
| 5502352 |
Spark plug having horizontal discharge |
Akio Katoh |
1996-03-26 |
| 5488262 |
Spark electrode having low thermal stress |
— |
1996-01-30 |
| RE35012 |
Spark plug for internal combustion engines having an alloy layer between the electrodes and tip ends |
Yasuyuki Sato, Kanji Higuchi |
1995-08-08 |
| 5406166 |
Long life spark plug having consumable discharge member |
Nobuo Abe, Akio Katoh |
1995-04-11 |
| 5202601 |
Spark plug for internal combustion engine with recess in electrode tip |
Yasuyuki Sato, Kiyoaki Tanaka |
1993-04-13 |
| 5196760 |
Spark plug for internal combustion engine with pillar shaped electrode |
Kiyoaki Tanaka |
1993-03-23 |
| 5159232 |
Spark plugs for internal-combustion engines |
Yasuyuki Sato, Hiroyuki Murai |
1992-10-27 |
| 5124612 |
Spark plug for internal-combustion engine |
Hiroyuki Murai, Yasuyuki Sato |
1992-06-23 |
| 5056496 |
Ignition system of multispark type |
Seiji Morino, Yasuhito Takasu, Masato Somiya |
1991-10-15 |
| 4845400 |
Spark plug for internal-combustion engine |
Hiroyuki Murai, Yasuyuki Sato |
1989-07-04 |
| 4581558 |
Spark plug for internal combustion engines having an alloy layer between the electrodes and tip ends |
Yasuyuki Sato, Kanji Higuchi |
1986-04-08 |
| 4540910 |
Spark plug for internal-combustion engine |
Ryoji Kondo, Kanji Higuchi |
1985-09-10 |
| 4488081 |
Ignition plug |
Ryoji Kondo, Kanji Higuchi, Yasuyuki Sato, Minoru Nagai |
1984-12-11 |