Toshio Maruyama

TK Toyoda Koki Kabushiki Kaisha: 13 patents #21 of 674Top 4%

NE Newfrey: 5 patents #75 of 476Top 20%

UI Ube Industries: 2 patents #593 of 1,686Top 40%

EM Emhart: 2 patents #94 of 338Top 30%

Sharp Kabushiki Kaisha: 1 patents #6,861 of 10,731Top 65%

The Yokohama Rubber Co.: 1 patents #666 of 1,136Top 60%

TT Tokyo Institute Of Technology: 1 patents #411 of 1,159Top 40%

TC Toyoda Gosei Co.: 1 patents #1,271 of 2,296Top 60%

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

JS Jfe Steel: 1 patents #825 of 1,401Top 60%

JT Jtekt: 1 patents #1,102 of 1,969Top 60%

MC Marcon Electronics Company: 1 patents #5 of 20Top 25%

Overall (All Time): #139,235 of 4,157,543Top 4%

Patents All Time

Issued Patents All Time

Showing 26–28 of 28 patents

Patent #	Title	Co-Inventors	Date
4497140	Cam grinding machine	Tsuyoshi Koide, Toshio Tsujiuchi	1985-02-05
4259940	Grinding machine with a CBN grinding wheel	Hiroaki Asano	1981-04-07
4208844	Guard device with dressing apparatus for grinding wheel	Yoshinobu Suzuki	1980-06-24