YT

Yasuo Tanaka

HI Hitachi: 31 patents #867 of 28,497Top 4%
OC Oki Electric Industry Co.: 14 patents #69 of 2,807Top 3%
MC Mitsui Chemicals: 13 patents #98 of 2,279Top 5%
HC Hitachi Construction Machinery Co.: 13 patents #89 of 1,234Top 8%
Fujitsu Limited: 10 patents #3,161 of 24,456Top 15%
MC Mitsubishi Gas Chemical Company: 10 patents #181 of 1,727Top 15%
JT Japan Tobacco: 7 patents #67 of 1,187Top 6%
OC Oki Semiconductor Co.: 7 patents #9 of 526Top 2%
HC Hitachi Electronic Devices Co.: 7 patents #7 of 92Top 8%
MC Minolta Co.: 7 patents #298 of 1,416Top 25%
PA Panasonic: 5 patents #5,165 of 21,108Top 25%
IC Ikeda Bussan Co.: 4 patents #34 of 235Top 15%
MC Murata Manufacturing Co.: 4 patents #1,804 of 5,295Top 35%
AC Alps Electric Co.: 3 patents #607 of 2,177Top 30%
FI Fujifilm Business Innovation: 3 patents #1,029 of 1,659Top 65%
MI Minolta: 3 patents #494 of 1,109Top 45%
KM Konica Minolta: 2 patents #764 of 1,361Top 60%
HC Hitachi Device Engineering Co.: 2 patents #202 of 514Top 40%
Mitsubishi Electric: 2 patents #11,187 of 25,717Top 45%
NC Nidec Copal: 2 patents #55 of 172Top 35%
NC Nippon Paint Holdings Co.: 2 patents #265 of 834Top 35%
Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
SL Suntory Holdings Limited: 2 patents #246 of 846Top 30%
FL Fujitsu Optical Components Limited: 1 patents #74 of 126Top 60%
MI Mitsui Petrochemical Industries: 1 patents #503 of 1,024Top 50%
MI Mitsui Toatsu Chemicals, Incorporated: 1 patents #880 of 1,543Top 60%
EB Ebara: 1 patents #1,014 of 1,611Top 65%
NE Newfrey: 1 patents #263 of 476Top 60%
DH Daido Hoxan: 1 patents #10 of 44Top 25%
SO Sony: 1 patents #17,262 of 25,231Top 70%
NC Nippon Seiko Co.: 1 patents #121 of 315Top 40%
DC Dainichi-Nippon Cables: 1 patents #21 of 64Top 35%
OM Omron: 1 patents #1,808 of 3,089Top 60%
PC Pi R&D Co.: 1 patents #17 of 41Top 45%
SC Sanyo Electric Co.: 1 patents #3,644 of 6,347Top 60%
TO Toyota: 1 patents #15,335 of 26,838Top 60%
Casio Computer Co.: 1 patents #1,284 of 1,970Top 70%
TC Tokyo Sanyo Electric Co.: 1 patents #24 of 89Top 30%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
Mazda Motor: 1 patents #2,563 of 4,755Top 55%
IJ Ishikawajima-Harima Jukogyo: 1 patents #170 of 494Top 35%
Honda Motor Co.: 1 patents #12,035 of 21,052Top 60%
UK Ushio Denki Kabushiki Kaisha: 1 patents #309 of 583Top 55%
FL Fujitsu Telecom Networks Limited: 1 patents #17 of 57Top 30%
Overall (All Time): #4,956 of 4,157,543Top 1%
167
Patents All Time

Issued Patents All Time

Showing 126–150 of 167 patents

Patent #TitleCo-InventorsDate
5056312 Hydraulic drive system for construction machines Toichi Hirata, Genroku Sugiyama, Yusuke Kajita, Yukio Aoyagi, Tomohiko Yasudi +5 more 1991-10-15
5056846 Partition plate for automotive vehicle 1991-10-15
5056858 Partition plate for automotive vehicle 1991-10-15
5050926 Partition plate for automotive vehicle 1991-09-24
5032531 Method of manufacturing active matrix panel Ken Tsutsui, Toshihisa Tsukada, Hideaki Yamamoto, Haruo Matsumaru 1991-07-16
5028656 Resin composition, and molded articles therefrom Masao Okabe, Akikzau Amgai, Haruaki Eto 1991-07-02
5026764 Resin composition based on modified polyphenylene ether and polyphenylene sulfide, and molded articles therefrom Masao Okabe, Akikzau Amgai, Haruaki Eto 1991-06-25
4990981 Thin film transistor and a liquid crystal display device using same Haruo Matsumaru, Hideaki Yamamoto, Toshihisa Tsukada, Ken Tsutsui, Yoshiyuki Kaneko 1991-02-05
4980606 Electron beam focusing device for use in a CRT Masaaki Yamauchi 1990-12-25
4967557 Control system for load-sensing hydraulic drive circuit Eiki Izumi, Hiroshi Watanabe, Kuniaki Yoshida, Toichi Hirata 1990-11-06
4965489 Electron gun for cathode-ray tube Shoji Shirai, Masaaki Yamauchi 1990-10-23
4906347 Dry-etching apparatus Kazuyuki Tomita, Masuo Tanno 1990-03-06
4855795 Photosensor Hideaki Yamamoto, Akira Sasano, Haruo Matsumaru, Toshihisa Tsukada 1989-08-08
4834458 Seat cushion structure Satoshi Izumida, Katsumi Kitamura, Masaru Kurita 1989-05-30
4812839 System for controlling network activation sequence Sumie Okada, Takashi Nara, Takashi Hatano, Yutaka Kawato, Ryoji Shimozono +2 more 1989-03-14
4811142 Magnetic head for vertical magnetic recording and method of producing same Keishi Nakashima, Tetsuya Iwata, Toshiaki Hashidate 1989-03-07
4809504 Control system for controlling input power to variable displacement hydraulic pumps of a hydraulic system Eiki Izumi, Hiroshi Watanabe, Shigetaka Nakamura 1989-03-07
4780780 Magnetic head Tetsuya Iwata 1988-10-25
4768121 Magnetic head formed by composite main pole film and winding core for perpendicular magnetic recording Keishi Nakashima, Tetsuya Iwata, Toshiaki Hashidate 1988-08-30
4766594 Digital network system having arrangement for testing digital subscriber line Yasunori Ogawa, Kenji Tsutsumi, Ryoji Shimozono 1988-08-23
4754273 System for controlling network activation sequence Sumie Okada, Takashi Nara, Takashi Hatano, Yutaka Kawato, Ryoji Shimozono +2 more 1988-06-28
4711136 Power transfer device for four-wheel drive Toshio Yoshinaka, Toshikatsu Taniguchi, Shuichiro Ida, Shuji Nagano, Shigeru Kimura 1987-12-08
4696588 Non-separable thrust rolling bearing Akio Niikura 1987-09-29
D290253 Digital audio compact disk player Kenzo Kanou 1987-06-09
D290002 Combined tape recorder, tuner, amplifier and record player 1987-05-26