HW

Hirofumi Watanabe

Mitsubishi Electric: 3 patents #76 of 1,581Top 5%
MK Mitsui Kinzoku Kogyo: 1 patents #4 of 9Top 45%
Ricoh Company: 1 patents #232 of 695Top 35%
Overall (1997): #2,674 of 185,788Top 2%
6
Patents 1997

Issued Patents 1997

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5684370 Control unit and method which vary the output voltage of an AC generator based on a detected duty ratio 1997-11-04
5684833 Mutual conversion method of binary data and multilevel signal, its communication method, and its receiving device 1997-11-04
5672954 Control system for AC generator 1997-09-30
5656841 Semiconductor device with contact hole Kaihei Isshiki, Tetsurou Tanigawa, Yasuyuki Shindou, Katsunari Hanaoka 1997-08-12
5618068 Door lock apparatus with automatic door closing mechanism Jiro Mitsui, Yoshihiko Fujihara 1997-04-08
5608310 AC generator control apparatus for a motor vehicle 1997-03-04