YT

Yasuo Tosaka

KO Konica: 12 patents #157 of 1,958Top 9%
KC Konishiroku Photo Industry Co.: 9 patents #85 of 894Top 10%
Overall (All Time): #212,036 of 4,157,543Top 6%
21
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6096490 Silver halide light sensitive color photographic material and process for preparing color proof Yoshiyuki Nonaka 2000-08-01
5981154 Silver halide color photographic light-sensitive material Susumu Ohkawachi, Masayuki Sasagawa 1999-11-09
5541040 Positive type color light sensitive material and the image forming process therefor Susumu Okawauchi, Yoshiyuki Nonaka, Keiichi Hoshino 1996-07-30
5492797 Direct positive silver halide color photographic light-sensitive material Masayuki Sasagawa 1996-02-20
5486450 Silver halide color photographic light sensitive material and the image-forming process thereof Masayuki Sasagawa 1996-01-23
5480767 Silver halide color photographic light-sensitive material and image-forming process Yoshiyuki Nonaka, Keiichi Hoshino 1996-01-02
5462844 Light-sensitive silver halide color photographic material and process for preparing color proof 1995-10-31
5436116 Silver halide color photographic photosensitive material and color proof preparation process Keiichi Hoshino, Susumu Ohkawachi, Yoshiyuki Nonaka 1995-07-25
5436117 Positive type silver halide color photographic light-sensitive material for color proofing use Keiichi Hoshino, Susumu Ohkawauchi, Yoshiyuki Nonaka 1995-07-25
5382506 Silver halide color photographic light sensitive material and the image-forming process thereof Masayuki Sasagawa 1995-01-17
4990432 Silver halide photographic light-sensitive material having a reflective base and an antihalation layer having a specified thickness Hajime Komatsu, Susumu Ohkawachi, Bunzo Ueda, Keiichi Hoshimo 1991-02-05
4943518 Direct-positive silver halide photographic light-sensitive material and method of processing it Tomomi Yoshizawa, Keiji Ogi, Kazuya Kuramoto, Yoshiyuki Nonaka 1990-07-24
4939078 Direct positive-type silver halide light-sensitive photographic material Kazuya Kuramoto, Bunzo Ueda 1990-07-03
4917991 Direct positive silver halide photographic material Keiji Ogi, Atushi Kamitakahara 1990-04-17
4863838 Direct positive type light-sensitive silver halide photographic materials Keiji Ogi 1989-09-05
4769315 Silver halide grain and light-sensitive photographic material containing said silver halide grain Yoshihiko Suda, Syoji Matsuzaka, Yukio Ohya 1988-09-06
4758504 Silver halide grains, light-sensitive photographic material containing the same and method for preparing silver halide photographic emulsion containing the same Yukio Ohya, Syoji Matsuzaka, Yoshihiko Suda 1988-07-19
4749644 Photographic material with two size population of silver halide grains and development inhibiting agent in an emulsion layer Keiji Ogi, Atsushi Kamitakahara 1988-06-07
4440851 Method for the formation of a direct positive image Keiji Ogi 1984-04-03
4279987 Light-sensitive, direct positive silver halide photographic material Keiji Ogi, Takashi Sasaki 1981-07-21
4268621 Direct positive photographic material Keiji Ogi, Takashi Sasaki, Kenichiro Okaniwa 1981-05-19