TK

Takashi Kawabata

Canon: 70 patents #324 of 19,416Top 2%
FI Fujifilm Business Innovation: 19 patents #411 of 5,238Top 8%
NC Nippon Zeon Co.: 9 patents #26 of 609Top 5%
Mitsubishi Electric: 6 patents #4,940 of 25,717Top 20%
Ricoh Company: 3 patents #4,826 of 9,818Top 50%
NC Nippon Piston Ring Co.: 2 patents #59 of 208Top 30%
Fujitsu Limited: 2 patents #10,930 of 24,456Top 45%
SE Seiko Epson: 2 patents #4,555 of 7,774Top 60%
JC Japan Lifeline Co.: 1 patents #8 of 17Top 50%
MM Mitsubishi Mining: 1 patents #886 of 2,247Top 40%
NI Nipro: 1 patents #207 of 473Top 45%
KU Keio University: 1 patents #190 of 781Top 25%
HZ Hitachi Zosen: 1 patents #216 of 531Top 45%
Shimano: 1 patents #486 of 759Top 65%
MC Mitsubishi Steel Mfg. Co.: 1 patents #53 of 145Top 40%
MC Murata Manufacturing Co.: 1 patents #3,462 of 5,295Top 70%
Overall (All Time): #10,135 of 4,157,543Top 1%
119
Patents All Time

Issued Patents All Time

Showing 76–100 of 119 patents

Patent #TitleCo-InventorsDate
4642451 Distance measuring device with various controls of the light emitting means Tokuichi Tsunekawa, Yuichi Sato, Susumu Matsumura 1987-02-10
4639108 Code plate Shinji Sakai, Yoshihito Harada 1987-01-27
4637705 Automatic focusing camera 1987-01-20
4632532 Focus detecting apparatus Susumu Matsumura, Tokuichi Tsunekawa, Yuichi Sato 1986-12-30
4629877 Photo-electric conversion device Yuichi Sato, Tokuichi Tsunekawa, Susumu Matsumura 1986-12-16
4614418 Distance detection apparatus Akira Ishizaki, Susumu Matsumura 1986-09-30
4613225 Automatic focusing device 1986-09-23
4599603 Compression type A/D converter Shinji Sakai, Akira Ishizaki 1986-07-08
4582424 Distance measuring apparatus 1986-04-15
4579438 Focusing device Yuichi Sato, Tokuichi Tsunekawa, Susumu Matsumura 1986-04-01
4575211 Distance measuring device Susumu Matsumura, Yuichi Sato, Tokuichi Tsunekawa 1986-03-11
4568168 Focus detecting system Shinji Sakai 1986-02-04
4563069 Control system for carrying out focus detection and light measurement of a camera Shinji Sakai 1986-01-07
4560864 Focus detecting device Takao Kinoshita, Kazuya Hosoe, Tokuichi Tsunekawa, Toshio Sakane 1985-12-24
4554674 Apparatus for detecting the amount of movement of a member to be controlled Shinji Sakai, Yoshihito Harada 1985-11-19
4549835 Docking apparatus for ships Takehiro Ando, Shuji Miyake, Osamu Murakami, Shigeo Hayashi, Michiyasu Otonari +1 more 1985-10-29
4547864 Correlation detecting device 1985-10-15
4547663 Focus detecting apparatus with a compensation mask Nozomu Kitagishi, Shin Yamaguchi, Shinji Sakai, Takao Kinoshita, Nobuhiko Shinoda +1 more 1985-10-15
4545664 Signal circuit for an automatic focusing lens Shinji Sakai 1985-10-08
4538892 Automatic focus control system Shinji Sakai, Yoshihito Harada, Akira Ishizaki 1985-09-03
4522480 Battery voltage checking device for cameras Nobuhiko Shinoda, Shinji Sakai 1985-06-11
4521093 Automatic focusing device used in combination with auxiliary light source Masanori Yamada 1985-06-04
4509841 Automatic focusing device Shinji Sakai 1985-04-09
4504135 Automatic focusing device 1985-03-12
4496832 Focusing state discriminating system Shinji Sakai, Nobuhiko Shinoda, Takao Kinoshita, Kazuya Hosoe 1985-01-29