Takashi Koyama

The Yokohama Rubber Co.: 27 patents #32 of 1,136Top 3%

TO Toyota: 20 patents #1,142 of 26,838Top 5%

Canon: 19 patents #3,464 of 19,416Top 20%

SO Sony: 15 patents #2,858 of 25,231Top 15%

PA Panasonic: 11 patents #2,326 of 21,108Top 15%

SC Sz Dji Technology Co.: 8 patents #110 of 680Top 20%

MM Mitsubishi Materials: 7 patents #133 of 1,543Top 9%

JT Japan Tobacco: 4 patents #152 of 1,187Top 15%

EL Elk: 3 patents #2 of 8Top 25%

KE Kabushiki Kaisha Elquest: 3 patents #2 of 2Top 100%

TS Toshiba Lifestyle Products & Services: 3 patents #16 of 81Top 20%

Honda Motor Co.: 2 patents #8,527 of 21,052Top 45%

TC Taiho Kogyo Co.: 2 patents #102 of 332Top 35%

Sharp Kabushiki Kaisha: 2 patents #5,184 of 10,731Top 50%

NC Nihon Parkerizing Co.: 1 patents #112 of 330Top 35%

HL Henkel Limited: 1 patents #428 of 861Top 50%

HC Hitachi Powdered Metals Co.: 1 patents #113 of 246Top 50%

IC Ikeda Bussan Co.: 1 patents #113 of 235Top 50%

KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%

KC Kunimine Industries Co.: 1 patents #4 of 37Top 15%

Mitsubishi Electric: 1 patents #15,491 of 25,717Top 65%

MD Mitsubishi Electric System Lsi Design: 1 patents #31 of 98Top 35%

DC Dai-Ichi Kogyo Seiyaku Co.: 1 patents #153 of 288Top 55%

NS Nippon Steel: 1 patents #2,111 of 4,423Top 50%

OL Olympus: 1 patents #2,078 of 3,097Top 70%

OC Olympus Optical Co.: 1 patents #1,517 of 2,334Top 65%

TC Tamron Co.: 1 patents #74 of 138Top 55%

Overall (All Time): #8,584 of 4,157,543Top 1%

128

Patents All Time

Issued Patents All Time

Showing 126–128 of 128 patents

Patent #	Title	Co-Inventors	Date
4893548	Hydraulically operated swash-type apparatus	Eiichiro Kawahara, Mitsumasa Furumoto	1990-01-16
4861324	Apparatus for manufacturing tobacco filter	Ichiro Hirose, Shichisei Tani, Motonori Inamura	1989-08-29
4539197	Process for making sintered composite mechanical parts	Kazuo Asaka	1985-09-03