Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12119151 | Ferrite powder and method of producing the same | Koji Aga, Takashi Kojima, Sho KUWAHARA, Satomi KONNO, Tadashi TSUDUKI | 2024-10-15 |
| 11651881 | Mn—Zn ferrite particles, resin molded body, soft magnetic mixed powder, and magnetic core | Takashi Kojima, Kazutaka ISHII, Tetsuya Igarashi, Koji Aga | 2023-05-16 |
| 11542174 | Ferrite particles, resin compositions and electromagnetic wave shielding material | Takashi Kojima, Kazutaka ISHII, Tetsuya Igarashi, Koji Aga | 2023-01-03 |
| 11521768 | Ferrite powder, resin composition, and molded body | Kazutaka ISHII, Koji Aga, Takashi Kojima | 2022-12-06 |
| 11150569 | Ferrite carrier core material for electrophotographic developer, carrier for electrophotographic developer, and developer | Yuzuru YAMASAKI, Takeshi Naito, Tetsuya Uemura | 2021-10-19 |
| 11014826 | Ferrite particles, resin composition and resin film | Takashi Kojima, Kazutaka ISHII, Tetsuya Igarashi, Koji Aga | 2021-05-25 |
| 10825593 | Ni—Zn—Cu ferrite particle, resin composition, and resin molding | Takashi Kojima, Kazutaka ISHII, Tetsuya Igarashi, Koji Aga | 2020-11-03 |
| 10775711 | Ferrite carrier core material for electrophotographic developer, ferrite carrier for electrophotographic developer, electrophotographic developer, and method for manufacturing ferrite carrier core material for electrophotographic developer | Kazutaka ISHII, Koji Aga | 2020-09-15 |
| 10603614 | Ferrite particles having outer shell structure used for filtering medium | Koji Aga | 2020-03-31 |
| 10585369 | Ferrite particle having outer shell structure | Koji Aga | 2020-03-10 |
| 10564561 | Ferrite carrier core material for electrophotographic developer, ferrite carrier for electrophotographic developer, electrophotographic developer, and method for manufacturing ferrite carrier core material for electrophotographic developer | Kazutaka ISHII, Koji Aga | 2020-02-18 |
| 10258970 | Ferrite particles provided with outer shell structure for catalyst supporting medium | Koji Aga | 2019-04-16 |
| 9588453 | Resin-filled ferrite carrier for electrophotographic developer and electrophotographic developer using the ferrite carrier | Hiroki Sawamoto | 2017-03-07 |
| 9557682 | Resin-coated carrier for electrophotographic developer and electrophotographic developer using the resin-coated carrier | Tetsuya Igarashi | 2017-01-31 |
| 9201328 | Core material for resin-filled ferrite carrier and ferrite carrier for electrophotographic developer, and electrophotographic developer using the ferrite carrier | Hiroki Sawamoto | 2015-12-01 |
| 8475988 | Resin-filled ferrite carrier core material for electrophotographic developer, ferrite carrier and electrophotographic developer using the ferrite carrier | Takashi Hikichi, Hiromichi Kobayashi | 2013-07-02 |
| 8431311 | Resin-filled carrier for electrophotographic developer, and electrophotographic developer using the resin-filled carrier | Takeshi Gondo, Hiromichi Kobayashi | 2013-04-30 |
| 8187781 | Resin-filled ferrite carrier for electrophotographic developer, production method thereof and electrophotographic developer using the ferrite carrier | Hiromichi Kobayashi | 2012-05-29 |
| 8168364 | Resin-filled carrier for electrophotographic developer, and electrophotographic developer using the resin-filled carrier | Takeshi Gondo, Hiromichi Kobayashi | 2012-05-01 |
| 8026033 | Ferrite carrier for electrophotographic developer and electrophotographic developer | Hiromichi Kobayashi, Kanao Kayamoto | 2011-09-27 |
| 6210850 | Carrier for electrophotographic developer and electrophotographic developer containing the same | Masahiro Ogata, Kazunori Takagi, Yuji Yoshikawa, Masaaki Yamaya | 2001-04-03 |
| 5246994 | Rubber composition containing a nitrile-conjugated diene copolymer | Akihiro Shibahara, Tetsuo Ohyama, Yasunori Iwasaki | 1993-09-21 |