Koichi Sakai

IK Imanishi Kinzoku Kogyo Kabushiki Kaisha: 4 patents #4 of 5Top 80%

HI Hitachi: 1 patents #814 of 2,935Top 30%

📍 Suita, JP: #2 of 96 inventorsTop 3%

Overall (1989): #2,583 of 140,708Top 2%

Patents 1989

Issued Patents 1989

Showing 1–5 of 5 patents

Patent #	Title	Co-Inventors	Date
D300774	Kerosene stove	—	1989-04-18
D300775	Kerosene stove	—	1989-04-18
D300455	Kerosene heater	—	1989-03-28
D300456	Kerosene heater	—	1989-03-28
4795933	Salient-pole rotary electric machine	—	1989-01-03