Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8428283 | Manufacturing method of paper making part for loudspeaker, paper making part for loudspeaker, diaphragm for loudspeaker, sub cone for loudspeaker, dust cap for loudspeaker and loudspeaker | Kenichi Ajiki, Shinya Mizone, Masahide Sumiyama, Toru Fujii | 2013-04-23 |
| 8343313 | Plant for production of paper-made part for speaker, paper-made part for speaker produced thereby, and speaker utilizing the same | Kenichi Ajiki, Shinya Mizone, Masahide Sumiyama, Toru Fujii | 2013-01-01 |
| 8235168 | Diaphragm for speaker, frame for speaker, dust cap for speaker, speaker and apparatus using them, and method for manufacturing component for speaker | Yoshimichi Kajihara, Shinya Mizone, Takashi Sabato, Kazuaki Nishimura | 2012-08-07 |
| 8230966 | Diaphragm for speaker, frame for speaker, dust cap for speaker, speaker and apparatus using them, and method for manufacturing component for speaker | Yoshimichi Kajihara, Shinya Mizone, Takashi Sabato, Kazuaki Nishimura | 2012-07-31 |
| 8199964 | Speaker diaphragm, speaker dust cap, speaker sub-cone, speaker using these components, and electronic apparatus using the same | Shinya Mizone, Kenichi Ajiki, Masahide Sumiyama, Toru Fujii, Yoshiyuku Takahashi +3 more | 2012-06-12 |
| 8177021 | Diaphragm for speaker, frame for speaker, dust cap for speaker, speaker and apparatus using them, and method for manufacturing component for speaker | Yoshimichi Kajihara, Shinya Mizone, Takashi Sabato, Kazuaki Nishimura | 2012-05-15 |
| 8144912 | Manufacturing method of paper making part for loudspeaker, paper making part for loudspeaker, diaphragm for loudspeaker, sub cone for loudspeaker, dust cap for loudspeaker and loudspeaker | Kenichi Ajiki, Shinya Mizone, Masahide Sumiyama, Toru Fujii | 2012-03-27 |
| 8122996 | Diaphragm for speaker, frame for speaker, dust cap for speaker, speaker and apparatus using them, and method for manufacturing component for speaker | Yoshimichi Kajihara, Shinya Mizone, Takashi Sabato, Kazuaki Nishimura | 2012-02-28 |
| 8098869 | Loudspeaker damper, manufacturing method thereof, and loudspeaker and electronic device using the same | Masatoshi Okazaki, Shinya Mizone, Masahide Sumiyama | 2012-01-17 |
| 6360069 | Roller for electrophotographic systems having surface roughness adjusted by fine particles | Kenji Kobayashi, Susumu Fukuda, Hiroshi Ogoshi, Yasuo Fushiki | 2002-03-19 |
| 6035172 | Developing roller | Yoshihisa Tawada, Kenji Kobayashi, Hiroshi Ogoshi, Susumu Fukuda | 2000-03-07 |
| 5810705 | Developing roller | Yoshihisa Tawada, Shigeo Akimoto, Kenji Kobayashi, Yasunori Matsunari, Susumu Fukuda | 1998-09-22 |