Tamotsu Usami

Sumitomo Electric Industries: 2 patents #693 of 4,178Top 20%

HI Hitachi: 1 patents #1,316 of 3,771Top 35%

KT Kabushiki Kaisha Toshiba: 1 patents #648 of 2,092Top 35%

Mitsubishi Electric: 1 patents #527 of 1,896Top 30%

NE Nec: 1 patents #251 of 1,039Top 25%

OC Oki Electric Industry Co.: 1 patents #84 of 313Top 30%

Rohm Co.: 1 patents #39 of 151Top 30%

SC Sanyo Electric Co.: 1 patents #223 of 669Top 35%

Sharp Kabushiki Kaisha: 1 patents #278 of 1,015Top 30%

UN Unknown: 1 patents #216 of 2,810Top 8%

Fujitsu Limited: 1 patents #1,098 of 3,370Top 35%

SO Sony: 1 patents #794 of 2,482Top 35%

📍 Nagakute, JP: #7 of 23 inventorsTop 35%

Overall (2004): #38,746 of 270,089Top 15%

Patents 2004

Issued Patents 2004

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
6812742	Electronic device	Kanji Otsuka	2004-11-02
6731153	Semiconductor integrated circuit having switching transistors and varactors	Kanji Otsuka	2004-05-04