Issued Patents All Time
Showing 51–70 of 70 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4528008 | Dust collecting filter | Shigeru Takagi | 1985-07-09 |
| 4523935 | Electrical heater retained in a porous ceramic structure | Shigeru Takagi | 1985-06-18 |
| 4516993 | Carbon particulates cleaning device | Yukihisa Takeuchi | 1985-05-14 |
| 4505726 | Exhaust gas cleaning device | Yukihisa Takeuchi | 1985-03-19 |
| 4485622 | Exhaust gas cleaning device for internal combustion engine | Shigeru Takagi, Yukihisa Takeuchi, Shigeru Kamiya, Kiyohiko Oishi, Kiyoshi Kobashi | 1984-12-04 |
| 4464185 | Exhaust gas filter | Toshiyuki Tsukao | 1984-08-07 |
| 4459805 | Combustion burner apparatus | Sigeru Kamiya, Shigeru Takagi, Masaei Nozawa, Nobutoshi Hayashi | 1984-07-17 |
| 4450682 | Carbon particulates cleaning device for diesel engine | Susumu Sato, Yukihisa Takeuchi, Shigeru Kamiya, Shigeru Takagi | 1984-05-29 |
| 4450681 | Carbon particulates cleaning device for diesel engine | Susumu Sato, Yukihisa Takeuchi, Shigeru Kamiya, Shigeru Takagi | 1984-05-29 |
| 4441899 | Dust collecting filter | Shigeru Takagi | 1984-04-10 |
| 4436538 | Filter for cleaning exhaust gases from diesel engine | Shigeru Takagi | 1984-03-13 |
| 4404798 | Exhaust gas cleaning device for internal combustion engine | Shigeru Takagi, Yukihisa Takeuchi, Shigeru Kamiya, Kiyohiko Oishi, Kiyoshi Kobashi | 1983-09-20 |
| 4404007 | Exhaust gas cleaning element | Toshiyuki Tukao | 1983-09-13 |
| 4396565 | Method for producing a filter | Masao Wakayama | 1983-08-02 |
| 4386497 | Exhaust gas cleaning device for internal combustion engine | Shigeru Takagi, Yukihisa Takeuchi, Shigeru Kamiya, Kiyohiko Oishi, Kiyoshi Kobashi | 1983-06-07 |
| 4381929 | Apparatus for adsorbing fuel vapor | Junzi Mizuno, Yukihisa Takeuchi, Akira Fukami, Masao Wakayama | 1983-05-03 |
| 4363644 | Filter for purifying exhaust gas | Susumu Sato, Yukihisa Takeuchi | 1982-12-14 |
| 4348226 | Direct reduction process for producing metallic iron | Mamoru Aoki, Kei Utsunomiya, Hironobu Sako, Dentaro Kaneko, Katsunori Shimazaki +1 more | 1982-09-07 |
| 4335574 | Carbon particles removing device | Susumu Sato, Yukihisa Takeuchi | 1982-06-22 |
| 4268303 | Direct reduction process for producing reduced iron | Dentaro Kaneko, Mamoru Onoda, Yoshio Kimura, Yutaka Inada | 1981-05-19 |