SY

Shigeki Yokoyama

Fujitsu Limited: 31 patents #717 of 24,456Top 3%
NO Nippon Oil: 10 patents #57 of 773Top 8%
NC Nippon Petrochemicals, Co.: 5 patents #47 of 359Top 15%
NC Nippon Paper Industries Co.: 2 patents #176 of 535Top 35%
PI Polymer Processing Research Institute: 2 patents #18 of 38Top 50%
OC Osaka Soda Co.: 1 patents #36 of 87Top 45%
CI Chukoh Chemical Industries: 1 patents #12 of 28Top 45%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
JC Jidosha Kiki Co.: 1 patents #106 of 196Top 55%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
Kubota: 1 patents #1,212 of 2,059Top 60%
Overall (All Time): #50,836 of 4,157,543Top 2%
52
Patents All Time

Issued Patents All Time

Showing 26–50 of 52 patents

Patent #TitleCo-InventorsDate
4921968 Pyrazoloazoleazomethine dyes Tadahisa Sato, Keizo Kimura, Nobuo Furutachi, Osamu Takahashi 1990-05-01
4891306 Photographic light-sensitive silver halide material containing an antistatic block copolymer Yukio Maekawa 1990-01-02
4879076 Process for the production of polyethylene materials Akira Sano, Seizo Kobayashi, Kazuo Matsuura, Takeshi Kamiya 1989-11-07
4859576 Silver halide photographic material comprising a protective layer containing a polyoxyethylene surface active agent Nobuaki Miyasaka, Shuzo Suga, Takashi Naoi, Masaki Satake 1989-08-22
4812355 Finish laminates for high frequency circuits Takeshi Kamiya, Takeo Niikawa, Masakatsu Nagase, Tetujiro Kuroishi 1989-03-14
H533 Method of forming a color image Keizo Kimura, Tadahisa Sato 1988-10-04
4767819 Ultra-high-molecular-weight polyethylene solution Michiaki Torii, Kazuo Matsuura, Akira Sano 1988-08-30
4760120 Easily soluble polyethylene powder for the preparation of fibers or films having high strength and high elastic modulus Akira Sano, Tetsujirou Kuroishi, Yasunosuke Miyazaki, Kazuo Matsuura 1988-07-26
4722885 Photographic light-sensitive material containing a specified graft polymer or copolymer Junichi Yamanouchi, Masakazu Yoneyama, Yukio Maekawa 1988-02-02
4704439 Chlorinated linear ultra low density polyethylene Noboru Yamaoka, Kazuo Matsuura, Kozo Misumi, Junichi Watanabe, Seiji Kadomatsu 1987-11-03
4677050 Silver halide photographic element containing crosslinked copolymers Takayuki Inayama, Naohiko Sugimoto, Takashi Naoi 1987-06-30
4649102 Silver halide photographic light-sensitive material Yasuo Mukunoki, Hiroshi Kawasaki, Ryoichi Nemori, Tetsuo Takeuchi 1987-03-10
4624913 Silver halide photographic light-sensitive materials Nobuaki Miyasaka, Koki Nakamura 1986-11-25
4623614 Silver halide photographic light-sensitive materials Masakazu Yoneyama, Yukio Maekawa, Junichi Yamanouchi 1986-11-18
4623615 Silver halide photographic light-sensitive materials Nobuhisa Sekiguchi 1986-11-18
4622288 Photographic light-sensitive material having improved antistaticity Junichi Yamanouchi, Masakazu Yoneyama, Yukio Maekawa 1986-11-11
4597818 Method for producing laminated sheets or films Takeo Aoyama, Syoji Magara, Tadashi Kamei, Mikio Uehara 1986-07-01
4558001 Silver halide photographic light-sensitive materials containing nonionic surface active antistatic agent Hisashi Okamura, Yukio Maekawa, Hiroshi Kawasaki 1985-12-10
4555480 Silver halide photographic light-sensitive material containing a polyoxyethylene surfactant and a nitron compound Koki Nakamura, Jyounichi Kouda, Nobuhisa Sekiguchi 1985-11-26
4518354 Silver halide photographic light-sensitive materials with antistatic layer containing nonionic surface active agent Akira Hibino, Yukio Maekawa, Hiroshi Kawasaki 1985-05-21
4510233 Antistatic agent containing silver halide photographic light-sensitive materials Akira Hibino, Yukio Maekawa, Hiroshi Kawasaki 1985-04-09
4495275 Silver halide photographic materials Kunihiko Ohga 1985-01-22
4388402 Photographic light-sensitive material Yasuo Mukunoki, Yasuhiro Nakayama 1983-06-14
4374924 Antistatic silver halide photographic light-sensitive material Shinzo Kishimoto, Itsuki Toriya, Taku Nakamura 1983-02-22
4366238 Silver halide photographic materials Kunihiko Ohga 1982-12-28