YT

Yasuyuki Tamura

Canon: 106 patents #85 of 19,416Top 1%
Fujitsu Limited: 5 patents #6,029 of 24,456Top 25%
Bridgestone: 3 patents #795 of 2,860Top 30%
Overall (All Time): #10,918 of 4,157,543Top 1%
115
Patents All Time

Issued Patents All Time

Showing 101–115 of 115 patents

Patent #TitleCo-InventorsDate
4422102 Laser recording method and apparatus simultaneously scanning and reading out adjacent data 1983-12-20
4415925 Color original readout apparatus 1983-11-15
4397537 Image forming method and apparatus 1983-08-09
4391891 Developing method using (alternating electric field and) a developer of the field-dependent type and an apparatus therefor Junichiro Kanbe, Shunji Nakamura, Tsutomu Toyono, Tohru Takahashi 1983-07-05
4377332 Developing device 1983-03-22
4373469 Apparatus for developing electrostatic latent images Tsukasa Kuge, Toru Matsumoto, Tsuyoshi Watanabe 1983-02-15
4369461 Method and apparatus for forming images 1983-01-18
4363861 Toner transfer development using alternating electric field Shunji Nakamura, Junichiro Kanbe, Tsutomu Toyono, Tohru Takahashi 1982-12-14
4346986 Image formation method and apparatus Tsukasa Kuge, Koichi Tanigawa 1982-08-31
4333124 Electrically discharging method and device Kimio Nakahata, Masato Ishida 1982-06-01
4320962 Image formation method and apparatus Tohru Takahashi 1982-03-23
4314017 Developer without carrier powder having an improved triboelectric charging property Tohru Takahashi, Tsutomu Toyono, Junichiro Kanbe, Shunji Nakamura 1982-02-02
4268161 Electrophotographic apparatus with corona discharge control Kimio Nakahata, Yoshinori Aguro 1981-05-19
4265197 Developing method and apparatus using application of first and second alternating bias voltages for latent image end portions and tone gradation, respectively Tsutomu Toyono, Shunji Nakamura, Junichiro Kanbe, Tohru Takahashi 1981-05-05
4185129 Method for developing electrostatic latent images and removal of excess developer Tsukasa Kuge, Toru Matsumoto, Tsuyoshi Watanabe 1980-01-22