Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9966524 | Ultrasonic probe, piezoelectric transducer, method of manufacturing ultrasonic probe, and method of manufacturing piezoelectric transducer | Noriko Yamamoto, Yohachi Yamashita, Yasuharu Hosono, Kazuhiro Itsumi | 2018-05-08 |
| 7997694 | Inkjet recording apparatus | Yuko Nomura, Isao Amemiya, Kenichi Mori | 2011-08-16 |
| 6116721 | Ink jet recording device | Chiaki Tanuma, Isao Amemiya | 2000-09-12 |
| 6095566 | Image recorded product, image recording system, image reproducing system, and recording medium for use to superimpose-record/reproduce additional information | Naofumi Yamamoto, Hidekazu Sekizawa, Haruko Kawakami | 2000-08-01 |
| 5754216 | Optical recording head and image recording apparatus | Eiichi Sakaue | 1998-05-19 |
| 5708514 | Error diffusion method in a multi-level image recording apparatus utilizing adjacent-pixel characteristics | Hidekazu Sekizawa, Naofumi Yamamoto, Haruko Kawakami, Eiichi Sakaue | 1998-01-13 |
| 5539440 | Image forming apparatus having colorant holding regions and a colorant repelling region | Yuzo Koike, Hideyuki Nakao, Shuzo Hirahara, Tutomu Saito, Koichi Ishii | 1996-07-23 |
| 5401472 | Apparatus for producing high surface area active carbon | Masahiro Kawakami, Toshiro Otowa, Mamoru Shiraishi | 1995-03-28 |
| 5183347 | Apparatus for printing images on booklets | Shuzo Hirahara, Tutomu Saito, Hitoshi Nagato, Akito Iwamoto | 1993-02-02 |
| 5175635 | Picture printing apparatus using multivalued patterns, binary patterns and dither patterns selectively | Kiyoshi Yamada, Shuzo Hirahara, Toshikazu Matsui | 1992-12-29 |
| 5099259 | Halftone image printing device | Shuzo Hirahara, Hitoshi Nagato, Kiyoshi Yamada, Tadayoshi Ohno, Tsutomu Kanai | 1992-03-24 |
| 5028991 | Image signal processing apparatus for use in color image reproduction | Hidekazu Sekizawa, Akito Iwamoto, Shuzo Hirahara, Naofumi Yamamoto, Tutomu Saito +1 more | 1991-07-02 |
| 5006870 | Thermal recording head | Shuzo Hirahara | 1991-04-09 |
| 4926251 | Color image processing apparatus with image corrector | Hidekazu Sekizawa, Tutomu Saito, Naofumi Yamamoto, Haruko Kawakami | 1990-05-15 |
| 4910603 | Half-tone image reproduction method and apparatus using partial density ranges | Shuzo Hirahara, Kiyoshi Yamada | 1990-03-20 |
| 4890121 | Halftone image printing device | Shuzo Hirahara, Hitoshi Nagato, Kiyoshi Yamada, Tadayoshi Ohno, Tsutomu Kanai | 1989-12-26 |
| 4884080 | Color image printing apparatus | Shuzo Hirahara, Hitoshi Nagato, Kiyoshi Yamada, Tadayoshi Ohno, Tsutomu Kanai +1 more | 1989-11-28 |
| 4724446 | Thermal transfer printing apparatus | Shuzo Hirahara, Hitoshi Nagato, Kiyoshi Yamada, Tadayoshi Ohno, Tsutomu Kanai | 1988-02-09 |
| 4692812 | Picture image reader | Shuzo Hirahara, Kiyoshi Yamada, Tutomu Saito | 1987-09-08 |