Shinichi Sumikawa

SO Sony: 4 patents #23 of 1,124Top 3%

Overall (1994): #4,506 of 165,921Top 3%

Patents 1994

Issued Patents 1994

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
D351168	Tape player	—	1994-10-04
D350956	Infrared transmitter	—	1994-09-27
D350959	Tape player combined with a radio tuner	—	1994-09-27
D347845	Headphone	—	1994-06-14