Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10712699 | Image forming apparatus and method for measuring toner charge | — | 2020-07-14 |
| 9900456 | Human body detection device and image forming apparatus | — | 2018-02-20 |
| 8998371 | Image forming apparatus | Tomoaki Nakano, Kazuyoshi Matsumoto, Shingo Masaoka, Yasukazu Kitamura, Namio Ogihara +10 more | 2015-04-07 |
| 8736883 | Image forming apparatus | Kazuyoshi Matsumoto | 2014-05-27 |
| 6392832 | Method for using heat to record on magnetic medium and disk apparatus having temperature changing device | Mitsumasa Oshiki | 2002-05-21 |
| 5353265 | Magneto optical overwriting methods using a single optical head designed for a two-beam overwrite | Miyozo Maeda, Yuji Inouye, Yasunobu Hashimoto, Ken-ichi Itoh | 1994-10-04 |
| 5214627 | Optical disk having read-exclusive and write-enable regions | Kazuo Nakashima, Yasunobu Hashimoto, Miyozo Maeda | 1993-05-25 |
| 5144601 | Magneto-optical overwriting methods using erasing pulses, each of which has a higher frequency and narrower width than that of the overwriting pulses | Miyozo Maeda, Yuji Inouye, Yasunobu Hashimoto, Ken-ichi Itoh | 1992-09-01 |
| 4822634 | Longitudinal magnetic coated recording medium | Jun Takahashi, Shigeru Fukushima, Toshikatu Narumi, Ken Itoh | 1989-04-18 |
| 4746569 | Longitudinal magnetic coated recording medium | Jun Takahashi, Shigeru Fukushima, Toshikatu Narumi, Ken-ichi Itoh | 1988-05-24 |
| 4650742 | Recording media with recording layer of two metal layers sandwiching sublimable organic substance layer | Yasuyuki Goto, Nagaaki Koshino, Hironori Goto, Koichi Ogawa | 1987-03-17 |