Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11838726 | Pressure wave-generating device and method for producing the same | — | 2023-12-05 |
| 8727908 | Golf club head | — | 2014-05-20 |
| 8350662 | Semiconductor ceramic and positive temperature coefficient thermistor | Naoaki Abe, Hayato Katsu, Atsushi Kishimoto, Akinori Nakayama | 2013-01-08 |
| 8289125 | Semiconductor ceramic and positive temperature coefficient thermistor | Atsushi Kishimoto, Hayato Katsu, Naoaki Abe, Akinori Nakayama | 2012-10-16 |
| 8284013 | Semiconductor ceramic and positive temperature coefficient thermistor | Hayato Katsu, Naoaki Abe, Atsushi Kishimoto, Akinori Nakayama | 2012-10-09 |
| 8228161 | Semiconductor ceramic and positive temperature coefficient thermistor | Naoaki Abe, Hayato Katsu, Atsushi Kishimoto, Akinori Nakayama | 2012-07-24 |
| 6594162 | Inverter device | Hisanobu Shinoda, Yoshio Kayumi, Tetsuro Shigemizu, Atsushi Takemura | 2003-07-15 |
| 6477834 | Exhaust emission controlling apparatus of internal combustion engine | Takamitsu Asanuma, Kenji Katoh | 2002-11-12 |
| 5538650 | Process for producing mixture of sulfurized alkaline earth metal salts of salicylic acid compound and phenol | Makoto Nishishita, Yoshihiro Kojima, Sanae Ueda | 1996-07-23 |
| 5472673 | Exhaust gas purification device for an engine | Satoshi Iguchi, Kenji Katoh, Tetsuro Kihara | 1995-12-05 |
| 5446202 | Over-based sulfurized alkaline earth metal phenate and process for producing the same | Makoto Nishishita, Sanae Ueda | 1995-08-29 |
| 5402641 | Exhaust gas purification apparatus for an internal combustion engine | Kenji Katoh, Shinichi Takeshima, Toshiaki Tanaka, Satoshi Iguchi, Tetsuro Kihara +2 more | 1995-04-04 |
| 5178781 | Process for producing over-based sulfurized alkaline earth metal phenate type detergent | Takashi Hori, Sanae Ueda, Yoshihiro Kojima, Hitoshi Kumagai | 1993-01-12 |
| D329428 | Facsimile | Toshiya Yoshida, Masaki Hara, Katsunori Takagi | 1992-09-15 |
| D289130 | Hot plate | Yasuhiro Rengeji, Tomoaki Sugimoto | 1987-04-07 |