HS

Hiroji Sumiyoshi

SO Sony: 5 patents #7,785 of 25,231Top 35%
Overall (All Time): #1,063,548 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4746315 Production of color selection mechanism for cathode-ray tube 1988-05-24
4720748 Cathode ray tube Kazuo Omae, Akira Hamanaka, Yuzuru Watanabe 1988-01-19
4641059 Cathode ray tube Teiji Arae 1987-02-03
4588430 Method of manufacturing a glass product and resulting product Makoto Maeda, Takashi Aoki 1986-05-13
4356515 Cathode ray tube Mitsumasa Suzuki, Hiroshi Okazaki 1982-10-26