Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5811369 | Thermal recording medium | Tomoaki Nagai, Kaoru Hamada | 1998-09-22 |
| 5811368 | Thermal sensitive recording medium | Tadakazu Fukuchi, Kaoru Hamada, Tomoaki Nagai, Nobuhiro Kudoh | 1998-09-22 |
| 5753586 | Thermal sensitive recording sheet | Kaoru Hamada, Yoshimi Midorikawa, Yutaka Wakita, Tomoaki Nagai, Hiroshi Ueda | 1998-05-19 |
| 5733843 | Thermal sensitive recording sheet | Toshiaki Minami, Tomoaki Nagai, Kaoru Hamada | 1998-03-31 |
| 5710094 | Reversible multi-color thermal recording medium | Toshiaki Minami, Tomoaki Nagai, Kaoru Hamada | 1998-01-20 |
| 5707778 | Optical recording medium | Toshiaki Minami, Tomoaki Nagai, Kaoru Hamada, Toshimi Satake, Toshiyuki Takano +1 more | 1998-01-13 |
| 5665675 | Aminobenzenesulfonamide derivative and recording medium using the same | Tomoaki Nagai, Kaoru Hamada | 1997-09-09 |
| 5661100 | Urea (thiourea) derivative and thermal recording sheet using the same | Toshiaki Minami, Tomoaki Nagai, Kaoru Hamada, Ryoichi Kinishi, Ryuzo Minakami | 1997-08-26 |
| 5494882 | Thermal recording material | Toshimi Satake, Hideki Hayasaka, Toshiyuki Takano, Tomoaki Nagai | 1996-02-27 |
| 5482913 | Recording sheet | Toshimi Satake, Tomoaki Nagai, Toshiyuki Takano | 1996-01-09 |
| 5434119 | Transparent recording medium | Toshimi Satake, Tomoaki Nagai, Toshiyuki Takano | 1995-07-18 |
| 5391666 | Light-responsive plate containing the metal salt of a phthalic acid derivative | Toshimi Satake, Tomoaki Nagai, Hiroshi Fukui, Miyuki Yokoyama | 1995-02-21 |
| 5369199 | Light-responsive plate containing metal salt of a phthalic acid derivative | Toshimi Satake, Tomoaki Nagai, Hiroshi Fukui, Miyuki Yokoyama | 1994-11-29 |
| 5273800 | Optical recording medium | Toshimi Satake, Tomoaki Nagai, Hiroshi Fukui, Miyuki Yokoyama | 1993-12-28 |
| 5234797 | Optical recording medium | Toshimi Satake, Tomoaki Nagai, Hiroshi Fukui, Miyuki Yokoyama | 1993-08-10 |
| 5202450 | Phthalic acid derivative metal salt and shading and light-responsive plate containing the metal salt | Toshimi Satake, Tomoaki Nagai, Hiroshi Fukui, Miyuki Yokoyama | 1993-04-13 |
| 5200947 | Optical recording medium, optical recording method, and optical recording device used in method | Toshimi Satake, Tomoaki Nagai, Hiroshi Fukui, Miyuki Yokoyama | 1993-04-06 |
| 5178990 | Method of identifying output, main wavelength, etc., of light | Toshimi Satake, Tomoaki Nagai, Hiroshi Fukui, Miyuki Yokoyama | 1993-01-12 |
| 5100711 | Optical recording medium optical recording method, and optical recording device used in method | Toshimi Satake, Tomoaki Nagai, Hiroshi Fukui, Miyuki Yokoyama | 1992-03-31 |
| 5075146 | Optical recording medium | Toshimi Satake, Tomoaki Nagai, Hiroshi Fukui | 1991-12-24 |
| 5061536 | Optical recording medium | Toshimi Satake, Tomoaki Nagai, Hiroshi Fukui, Miyuki Yokoyama | 1991-10-29 |
| 4602293 | Manuscript reading apparatus | — | 1986-07-22 |