Issued Patents All Time
Showing 1–25 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12385130 | Device for forming diamond film etc. and method therefor | Hiromichi Toyota, Shinfuku Nomura | 2025-08-12 |
| 9588322 | Zoom lens, optical apparatus and manufacturing method for the zoom lens | — | 2017-03-07 |
| 8804250 | Zoom lens, optical apparatus and method for manufacturing zoom lens | — | 2014-08-12 |
| 8587875 | Zoom lens, optical apparatus and method for manufacturing zoom lens | — | 2013-11-19 |
| 7920334 | Zoom lens system, optical apparatus and method for zooming the same | — | 2011-04-05 |
| 7675688 | Zoom lens system, optical device with zoom lens system, and method of manufacturing zoom lens system | — | 2010-03-09 |
| RE41022 | Optical recording disk capable of resynchronization in digital encoding and decoding | Takeshi Nakajima | 2009-12-01 |
| RE40996 | Optical recording disk capable of resynchronization in digital encoding and decoding | Takeshi Nakajima | 2009-11-24 |
| 7446956 | Zoom lens system, imaging apparatus and method for varying focal length | — | 2008-11-04 |
| RE40312 | Digital data transmitting method | Tadashi Kojima, Koichi Hirayama, Hisashi Yamada, Yoshiaki Moriyama, Fumihiko Yokogawa +4 more | 2008-05-13 |
| RE39832 | Optical recording disk capable of resynchronization in digital encoding and decoding | Takeshi Nakajima | 2007-09-11 |
| 6885775 | Image processing method and image processing apparatus | Satoshi Kondo, Masahiro Honjo, Masao Kitagawa | 2005-04-26 |
| RE37801 | Optical recording disk capable of resynchronization in digital encoding and decoding | Takeshi Nakajima | 2002-07-23 |
| 6417963 | Optical fiber splicing structure | Yasutake Ohishi, Atsushi Mori, Makoto Yamada, Hirotaka Ono, Terutoshi Kanamori | 2002-07-09 |
| 6356387 | Tellurite glass, optical amplifier, and light source | Yasutake Ohishi, Atsushi Mori, Makoto Yamada, Hirotaka Ono, Terutoshi Kanamori | 2002-03-12 |
| 6266181 | Tellurite glass, optical amplifier, and light source | Yasutake Ohishi, Atsushi Mori, Makoto Yamada, Hirotaka Ono, Terutoshi Kanamori | 2001-07-24 |
| 5987066 | Digital data transmitting method | Tadashi Kojima, Koichi Hirayama, Hisashi Yamada, Yoshiaki Moriyama, Fumihiko Yokogawa +4 more | 1999-11-16 |
| 5917857 | Digital modulation apparatus, a digital modulation method, and a recording medium therefor | Shin-ichi Tanaka, Tadashi Kojima, Koichi Hirayama, Yoshiaki Moriyama, Fumihiko Yokogawa +2 more | 1999-06-29 |
| 5912869 | Recording medium data transmission method and apparatus and data reproduction method and apparatus | Shin-ichi Tanaka, Tadashi Kojima, Koichi Hirayama | 1999-06-15 |
| 5898654 | Optical disk and optical disk apparatus having a predetermined pattern of marks on tracks such that a reproduced signal is caused to jitter | Mamoru Shoji, Takashi Ishida, Shunji Ohara | 1999-04-27 |
| 5881037 | Recording medium, recording method and apparatus, and reproduction method and apparatus | Shin-ichi Tanaka, Tadashi Kojima, Koichi Hirayama | 1999-03-09 |
| 5848036 | Optical disk drive equipped with waveform equalizer and focus adjustment circuit | Hiromichi Ishibashi, Ryusuke Horibe | 1998-12-08 |
| 5777967 | Optical disk device | Hiromichi Ishibashi, Yasuaki Edahiro, Mitsurou Moriya, Ryusuke Horibe, Hiroyuki Miyachi | 1998-07-07 |
| 5774078 | Single merging bit DC-suppressed run length limited coding | Shin-ichi Tanaka, Koichi Hirayama, Hisashi Yamada | 1998-06-30 |
| 5729224 | Code conversion and demodulation apparatus, a method thereof, and a recording medium | Koichi Hirayama, Yoshiyuki Ishizawa, Shinichi Tanaka | 1998-03-17 |