Issued Patents All Time
Showing 26–50 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6366008 | Spark plug and method of making the same | Osamu Fukushima, Hiroyuki Tanabe | 2002-04-02 |
| 6341501 | Method of producing a spark plug | Yutaka Tanaka | 2002-01-29 |
| 6334800 | Manufacturing method of resistor-incorporated spark plug | Kenichi Nishikawa, Yutaka Tanaka, Toshitaka Honda | 2002-01-01 |
| 6274971 | Spark plug and method of manufacturing the same | Hiroaki Masuda | 2001-08-14 |
| 6214150 | Method of transfer printing a ceramic spark plug insulator | Hirohito Ito | 2001-04-10 |
| 6191525 | Spark plug | Yutaka Tanaka | 2001-02-20 |
| 6160342 | Resistor-incorporated spark plug and manufacturing method of resistor-incorporated spark plug | Kenichi Nishikawa, Yutaka Tanaka, Toshitaka Honda | 2000-12-12 |
| 6137211 | Spark plug and producing method thereof | Yutaka Tanaka | 2000-10-24 |
| 5976674 | Transfer sheet, a method of transferring a figuration therefrom and a ceramic product on which the figuration is printed | Hirohito Ito | 1999-11-02 |
| 5891585 | Nb.sub.3 Al multi-filamentary superconducting wire | Naoki Ayai, Yuichi Yamada, Akira Mikumo, Kenichi Takahashi, Norikiyo Koizumi +2 more | 1999-04-06 |
| 5859491 | Spark plug | Kenichi Nishikawa | 1999-01-12 |
| 5702998 | Sintered ceramic body for a spark plug insulator and method of sintering the same | Mamoru Musasa, Hiroyuki Tanabe, Masahiro Konishi | 1997-12-30 |
| 5565157 | Method of making a spark plug insulator | Masahiro Konishi, Hiroyuki Tanabe, Kenichi Nishikawa | 1996-10-15 |
| 5508582 | Spark plug insulator for use in internal combustion engine | Masahiro Konishi, Hiroyuki Tanabe, Kenichi Nishikawa | 1996-04-16 |
| 5477104 | Spark plug resistant to accidental discharges | Hiroyuki Tanabe, Mamoru Musasa, Masahiro Konishi | 1995-12-19 |
| 5370832 | Sintered ceramic body for a spark plug insulator and method of sintering the same | Mamoru Musasa, Hiroyuki Tanabe, Masahiro Konishi | 1994-12-06 |
| 5283134 | Spark plug insulator and a method of sintering | Hiroyuki Tanabe, Mamoru Musasa | 1994-02-01 |
| 5198394 | Sintered ceramic body, a method of making same and spark plug insulator made therefrom | Mamoru Musasa, Hiroyuki Tanabe | 1993-03-30 |
| 5109178 | Spark plug for internal combustion engine | Mitsutaka Yoshida, Akihiro Toya, Akihisa Harada, Eigo Goto, Toru Moriya | 1992-04-28 |
| 4981456 | Remote controlled helicopter | Akira Sato, Kyoji Mukumoto | 1991-01-01 |
| 4694929 | Frame body of motorcycles | — | 1987-09-22 |
| 4601848 | Resistor compositions for producing a resistor in resistor-incorporated spark plugs | Masao Sakai, Miyakazu Hashizume, Yutaka Tanaka, Yukihiko Ito | 1986-07-22 |
| 4504411 | Resistor composition for resistor-incorporated spark plugs | Masao Sakai, Yasuhiko Suzuki | 1985-03-12 |
| 4482475 | Resistor composition for resistor-incorporated spark plugs | Masao Sakai, Yasuhiko Suzuki | 1984-11-13 |
| 4446058 | Resistor composition for resistor-incorporated spark plugs | Masao Sakai, Miyakazu Hashizume, Yasuhiko Suzuki | 1984-05-01 |