Toshihiro Imai

OC Olympus Optical Co.: 25 patents #74 of 2,334Top 4%

IC Ishikawa Gasket Co.: 13 patents #5 of 48Top 15%

AR Arkray: 5 patents #60 of 354Top 20%

TK Toshiba Tec Kabushiki Kaisha: 4 patents #629 of 1,664Top 40%

KT Kabushiki Kaisha Toshiba: 2 patents #9,982 of 21,451Top 50%

DE Denso: 2 patents #4,986 of 11,792Top 45%

JT Japan Tobacco: 2 patents #330 of 1,187Top 30%

NC Nippondenso Co.: 2 patents #1,150 of 3,479Top 35%

FC Furukawa Electric Co.: 1 patents #1,242 of 2,370Top 55%

TI Tokyo Electric Power Company Holdings, Incorporated: 1 patents #245 of 711Top 35%

CI Central Research Institute Of Electric Power Industry: 1 patents #86 of 276Top 35%

SO Sony: 1 patents #17,262 of 25,231Top 70%

Overall (All Time): #47,178 of 4,157,543Top 2%

Patents All Time

Issued Patents All Time

Showing 51–54 of 54 patents

Patent #	Title	Co-Inventors	Date
4235521	Photographic lens system	—	1980-11-25
4232944	Standard photographic lens	—	1980-11-11
4221467	Wide-angle photographic camera lens system	—	1980-09-09
4204747	Method of focussing in a photographic lens system	—	1980-05-27