Issued Patents All Time
Showing 176–200 of 213 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5914495 | Inspection apparatus for inspecting a defect of an optical disc | Shigeki Ishizuka, Koichi Sato, Akira Nikami, Yoshitake Yanagisawa | 1999-06-22 |
| 5908738 | Undercoating composition for photolithography | Katsumi Oomori, Kiyoshi Ishikawa, Etsuko Iguchi, Toshimasa Nakayama | 1999-06-01 |
| 5854357 | Process for the production of polyhydroxstyrene | Kazuyuki Nitta, Akiyoshi Yamazaki, Etsuko Iguchi, Yoshika Sakai, Kazufumi Sato +1 more | 1998-12-29 |
| 5849467 | Method for the pre-treatment of a photoresist layer on a substrate surface | Naomi Nagatsuka, Koichi Nagasawa, Hutoshi Shimai, Kouji Harada | 1998-12-15 |
| 5845184 | Developing unit having improved toner density control | Akira Nagahara, Yoshio Yamaguchi, Shigenobu Utaka, Toshio Tooda, Haruyasu Watanabe +4 more | 1998-12-01 |
| 5815767 | Image forming apparatus | Akio Kutsuwada, Masaru Tanaka, Takeo Suda, Toshitaka Yamaguchi, Kenzou Tatsumi | 1998-09-29 |
| 5800964 | Photoresist composition | Kazuyuki Nitta, Hideo Hada, Tatsuya Hashiguchi, Hiroshi Komano, Toshimasa Nakayama | 1998-09-01 |
| 5789136 | Negative-working photoresist composition | Katsumi Oomori, Kiyoshi Ishikawa, Etsuko Iguchi, Fumitake Kaneko | 1998-08-04 |
| 5778285 | Image forming apparatus for collecting residual toner from a drum using an AC voltage | Akira Nagahara, Sachio Sasaki, Mitsuhito Furukawa, Shigenobu Utaka, Yoshio Yamaguchi +3 more | 1998-07-07 |
| 5756255 | Undercoating composition for photolithography | Katsumi Oomori, Kiyoshi Ishikawa, Etsuko Iguchi, Toshimasa Nakayama | 1998-05-26 |
| 5753421 | Stock developer solutions for photoresists and developer solutions prepared by dilution thereof | Masakazu Kobayashi, Toshimasa Nakayama | 1998-05-19 |
| 5747224 | Stock developer solutions for photoresists and developer solutions prepared by dilution thereof | Masakazu Kobayashi, Toshimasa Nakayama | 1998-05-05 |
| 5736296 | Positive resist composition comprising a mixture of two polyhydroxystyrenes having different acid cleavable groups and an acid generating compound | Kazuyuki Nitta, Akiyoshi Yamazaki, Etsuko Iguchi, Yoshika Sakai, Kazufumi Sato +1 more | 1998-04-07 |
| 5700625 | Negative-working photoresist composition | Katsumi Oomori, Kiyoshi Ishikawa, Etsuko Iguchi, Fumitake Kaneko | 1997-12-23 |
| 5697020 | Image forming apparatus for moving a charging roller towards and away from a photoreceptor and a cleaning member for the charging roller | Akio Kutsuwada, Takeshi Saito, Toshitaka Yamaguchi | 1997-12-09 |
| 5678125 | Image forming apparatus | Akio Kutsuwada, Masaru Tanaka, Takeo Suda, Toshitaka Yamaguchi, Kenzou Tatsumi | 1997-10-14 |
| 5678143 | Image forming apparatus for collecting residual toner from a drum using an AC voltage | Akira Nagahara, Sachio Sasaki, Mitsuhito Furukawa, Shigenobu Utaka, Yoshio Yamaguchi +3 more | 1997-10-14 |
| 5658681 | Fuel cell power generation system | Koichi Shiraishi | 1997-08-19 |
| 5623305 | Camera shake correcting apparatus having damping coils for yaw and pitch | Shigeki Ishizuka, Koichi Sato, Akira Nikami | 1997-04-22 |
| 5572298 | Image forming apparatus having a developing apparatus which includes a partition member for partitioning a developing room and a toner hopper | Akira Nagahara, Sachio Sasaki, Shigenobu Utaka, Takefumi Takahashi, Masahiro Wanou +1 more | 1996-11-05 |
| 5543268 | Developer solution for actinic ray-sensitive resist | Hatsuyuki Tanaka, Toshimasa Nakayama, Hiroshi Komano | 1996-08-06 |
| 5467176 | Image forming method and apparatus with magnetic brush | Tsuneo Watanuki, Yasushige Nakamura, Satoshi Takezawa, Norio Sawatari, Akira Nagahara +5 more | 1995-11-14 |
| 5448341 | Image forming apparatus | Akira Nagahara, Sachio Sasaki, Shigenobu Utaka, Takefumi Takahashi, Masahiro Wanou +1 more | 1995-09-05 |
| 5097345 | Magnetic video recording apparatus | Toshizumi Ando, Kazuyuki Taniguchi, Yoshiyuki Takekawa | 1992-03-17 |
| 5032909 | Image enhancer which utilizes a lowpass filter after an outline extracting circuit | Toshiaki Isogawa, Toshizumi Ando, Shingo Nakata | 1991-07-16 |