Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11786967 | Composite member manufacturing method and composite member | Makoto Ogata, Shuho Koseki | 2023-10-17 |
| 11713496 | Powder material, powder material for additive manufacturing, and method for producing powder material | Hirotsugu Kawanaka, Hiroshi SHIRATORI, Shuho Koseki, Gang Han, Kiyomi Nakamura | 2023-08-01 |
| 11536637 | Abrasion test apparatus | Yoshihiko Kobayashi, Shuho Koseki, Katsuhiro Obata, Fumiaki Honda, Takahiro Makiyama | 2022-12-27 |
| 10858295 | Composite particles, composite powder, method for manufacturing composite particles, and method for manufacturing composite member | Shuho Koseki, Daiki Shinno, Kenichi Inoue | 2020-12-08 |
| 6784125 | Nonwoven thermoplastic elastomer fabric roll and method and apparatus for making same | Yukio Yamakawa, Tsutomu Teshima, Yutaka Tanaka | 2004-08-31 |
| 6784127 | Polyurethane elastic fiber nonwoven fabric and its production and synthetic leather using the same | Yukio Yamakawa, Eiji Kawabata, Yutaka Tanaka | 2004-08-31 |
| 6507719 | Image forming apparatus with pre-exposed image bearing body | — | 2003-01-14 |
| 6301455 | Charging member, charging device and image forming apparatus wherein deposition of magnetic particles to a member to be charged is effectively prevented | Harumi Ishiyama, Yasushi Sato, Hideyuki Yano, Yasunori Chigono, Seiji Mashimo | 2001-10-09 |
| 6301459 | Charging apparatus with first and second charging members | Harumi Ishiyama, Yasushi Sato, Hideyuki Yano, Yasunori Chigono, Seiji Mashimo | 2001-10-09 |
| 6157800 | Charging device using a magnetic brush contactable to a member to be charged and image forming apparatus using same | Harumi Ishiyama, Hideyuki Yano | 2000-12-05 |
| 6118952 | Image forming apparatus that detects image forming condition | — | 2000-09-12 |
| 6061539 | Charging member, charging device and image forming apparatus | Harumi Ishiyama, Yasushi Sato, Hideyuki Yano, Yasunori Chigono, Seiji Mashimo | 2000-05-09 |
| 6006055 | Image forming apparatus | — | 1999-12-21 |
| 5963762 | Electrophotographic apparatus performing image exposure and development simultaneously | Junji Araya, Hideyuki Yano, Harumi Kugo, Osamu Iwasaki | 1999-10-05 |
| 5809379 | Electrophotography having photosensitive member with charge blocking overlayer | Hideyuki Yano, Yasushi Sato, Junji Araya, Yukihiro Ohzeki, Harumi Kugoh +2 more | 1998-09-15 |
| 5754927 | Magnetic charging brush having particular magnetic fields | Harumi Ishiyama, Takeo Yamamoto, Yasunori Chigono, Seiji Mashimo | 1998-05-19 |
| 5729802 | Contact charger for charging a photosensitive member | Jun Hirabayashi, Nobuyuki Ito, Harumi Ishiyama, Yasunori Chigono, Seiji Mashimo | 1998-03-17 |
| 5708932 | Charging system and electrophotography apparatus | Hideyuki Yano, Akio Maruyama, Yomishi Toshida, Noboru Kashimura, Kazushige Nakamura +2 more | 1998-01-13 |
| 5666192 | Charging member and image forming apparatus | Seiji Mashimo, Yasushi Sato, Harumi Ishiyama | 1997-09-09 |
| 5659852 | Image forming method, image forming apparatus and process cartridge | Yasunori Chigono, Harumi Ishiyama, Seiji Mashimo | 1997-08-19 |
| 5587773 | Electrophotographic apparatus for performing image exposure and development simultaneously | Hideyuki Yano, Junji Araya, Yukihiro Ozeki, Harumi Kugo, Katsuhiro Sakaizawa +1 more | 1996-12-24 |
| 5579095 | Charging device | Hideyuki Yano, Harumi Ishiyama, Seiji Mashimo | 1996-11-26 |
| 5499080 | Image forming apparatus having a voltage controlled contact charger | Junji Araya, Hideyuki Yano, Harumi Kugoh | 1996-03-12 |
| 5485248 | Image forming apparatus having a contact charger for varying a charge applied to a photosensitive drum based on a resistance of the photosensitive layer | Hideyuki Yano, Junji Araya, Norio Hashimoto, Harumi Kugoh, Takashi Shibuya | 1996-01-16 |
| 5384626 | Charging member, process cartridge and image forming apparatus | Harumi Kugoh, Junji Araya, Hideyuki Yano | 1995-01-24 |