Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5446615 | Electrifying method and electrifying apparatus used therefor | Shoji Matsumoto, Masanori Matsuda, Eiji Goto, Akinori Nishida, Isao Iwagawa | 1995-08-29 |
| 5060023 | Developing process for forming image having high quality | Takeshi Hori | 1991-10-22 |
| 5049471 | Magnetic brush development process | Junko Mizuno | 1991-09-17 |
| 5049470 | Development process for formation of high-quality image | Junko Mizuno | 1991-09-17 |
| 4963454 | Method for developing electrostatic images using magnetic brush | Koji Yano, Nobuhiro Miyakawa, Kazuo Yamamoto, Yoshinobu Kawakami | 1990-10-16 |
| 4949127 | Magnetic brush development process | Tomiyasu Matsuda | 1990-08-14 |
| 4614698 | Two-component electrophotographic developer with magnetic carrier | Nobuhiro Miyakawa, Koji Yano, Kazuo Yamamoto, Yoshinobu Kawakami | 1986-09-30 |
| 4607936 | Electrophotographic apparatus comprising photosensitive layer of amorphous silicon type photoconductor | Nobuhiro Miyakawa, Koji Yano, Kazuo Yamamoto, Yoshinobu Kawakami | 1986-08-26 |
| 4592643 | Copying machine having reduced image memory | Nobuhiro Miyakawa, Koji Yano, Kazuo Yamamoto, Yoshinobu Kawakami | 1986-06-03 |
| 4576888 | Toner for electrophotography comprising azoic pigment having silica core | Nobuhiro Miyakawa, Kouji Maekawa, Kaname Nakatani | 1986-03-18 |
| 4566908 | Azoic pigments having a silica core | Kaname Nakatani, Nobuhiro Miyakawa, Syoji Nakagama | 1986-01-28 |
| 4535044 | Photosensitive material for electrophotography containing photosensitive layer incorporating pentakisazo pigment | Nobuhiro Miyakawa | 1985-08-13 |
| 4524118 | Electrophotographic photosensitive material with ozone inhibitor | Kaname Nakatani, Nobuhiro Miyakawa, Tomomi Edo | 1985-06-18 |
| 4480019 | Electrophotographic photosensitive material | Kaname Nakatani, Nobuhiro Miyakawa | 1984-10-30 |
| 4447513 | Photosensitive material for electrophotography | Nobuhiro Miyakawa, Yumiko Sano, Masatomi Funato | 1984-05-08 |