Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12422769 | Structure for electrically protecting fixing apparatus provided in image forming apparatus | Masaki Inagaki, Toshiyuki Ichino, Yuji Fujiwara, Takao Kawazu | 2025-09-23 |
| 12210310 | Image forming apparatus having a connector that electrically connects a fixing unit to a circuit board having a power control circuit | Yuji Fujiwara, Ryota Ogura, Keigo Akiya | 2025-01-28 |
| 12158713 | Heater and image heating device | Yasumasa Matayoshi, Keigo Akiya | 2024-12-03 |
| 12153365 | Image heating apparatus and image forming apparatus | Koichi Sekimizu, Koichi Yamada, Seiji Obata | 2024-11-26 |
| 11953850 | Heater and image heating apparatus | Takaomi Uezono, Takao Kawazu, Atsushi Iwasaki | 2024-04-09 |
| 11768454 | Image forming apparatus having a first circuit for supplying power to a heater, a second circuit electrically insulated with reinforced insulation from the first circuit, and a third circuit electrically insulated from the first and second circuits | Yuji Fujiwara, Ryota Ogura, Keigo Akiya | 2023-09-26 |
| 11487230 | Image heating apparatus and image forming apparatus | Koichi Sekimizu, Koichi Yamada, Seiji Obata | 2022-11-01 |
| 11262677 | Image forming apparatus having a connector with multiple circuits having varying insulation | Yuji Fujiwara, Ryota Ogura, Keigo Akiya | 2022-03-01 |
| 11249020 | Determination apparatus for determining type of recording medium and image forming apparatus using the same | Tsutomu Ishida, Masafumi Monde, Takuya Shono | 2022-02-15 |
| 10983464 | Image heating device with first and second groups of conductors having different widths, and image forming apparatus | Yusuke Nakashima, Takao Kawazu, Ryota Ogura | 2021-04-20 |
| 10845741 | Image forming apparatus in which a first circuit for supplying power to a heater and second and third circuits electrically isolated from the first circuit are linearly disposed on a circuit board surface | Yuji Fujiwara, Ryota Ogura, Keigo Akiya | 2020-11-24 |
| 10712984 | Image forming apparatus | Ryo Suzuki, Munehito Kurata, Yasuhisa Matsumoto | 2020-07-14 |
| 10558410 | Image forming apparatus | Ryo Suzuki, Munehito Kurata, Yasuhisa Matsumoto | 2020-02-11 |
| 10458913 | Determination apparatus for determining type of recording medium and image forming apparatus using the same | Tsutomu Ishida, Masafumi Monde, Takuya Shono | 2019-10-29 |
| 9983530 | Determination apparatus for determining type of recording medium and image forming apparatus using the same | Tsutomu Ishida, Masafumi Monde, Takuya Shono | 2018-05-29 |
| 9501003 | Image forming apparatus | — | 2016-11-22 |
| 9383704 | Grammage detection sensor for recording material and image forming apparatus | Shuhei Watanabe, Yasutaka Yagi, Tsutomu Ishida, Tadashi Okanishi, Motoyasu Muramatsu | 2016-07-05 |
| 9250591 | Ultrasonic wave sensor and image forming apparatus | Yasutaka Yagi, Tsutomu Ishida, Tadashi Okanishi, Motoyasu Muramatsu, Masaki Kobayashi | 2016-02-02 |
| 9213278 | Image forming apparatus | — | 2015-12-15 |
| 8649698 | Image forming apparatus controlling power to a heating unit forming a fixing nip portion with a pressure roller through which a recording sheet is conveyed to fix a toner image thereon | Hiromitsu Kumada | 2014-02-11 |
| 8244150 | Fixing apparatus | Hiromitsu Kumada, Atsunobu Mori | 2012-08-14 |
| 7630662 | Image forming apparatus for fixing an image on a recording material and a current detection circuit therefor | Daizo Fukuzawa, Mahito Yoshioka, Yasuhiro Shimura, Hiromitsu Kumada | 2009-12-08 |
| 7579749 | Power supply device and image forming apparatus using the power supply device | Hiroki Murata, Osamu Nagasaki, Atsuhiko Yamaguchi, Tomohiro Nakamori, Takehiro Uchiyama +1 more | 2009-08-25 |
| 7548708 | Power supply unit in image forming apparatus | Osamu Nagasaki, Atsuhiko Yamaguchi, Tomohiro Nakamori, Takehiro Uchiyama, Kouji Yasukawa +1 more | 2009-06-16 |
| 7099605 | Optional apparatus for image forming apparatus | — | 2006-08-29 |