Inventor · disambiguated record
Hiroji Sumiyoshi
Also filed as: SUMIYOSHI HIROJI
6 granted patents·49 citations·filing 1975–1986
81Inventor score
Files withSONY CORP6
Top patents by PatentIndex Score
6 records- 0182US4031553AImplosion-resistant cathode ray tube with protective assembly for its face plateSONY CORP·Filed 1975·Granted Jun 21, 1977·22 cites·6 claims
- 0248US4746315AProduction of color selection mechanism for cathode-ray tubeSONY CORP·Filed 1986·Granted May 24, 1988·7 cites·3 claims
- 0348US4356515ACathode ray tubeSONY CORP·Filed 1981·Granted Oct 26, 1982·7 cites·7 claims
- 0442US4588430AMethod of manufacturing a glass product and resulting productSONY CORP·Filed 1985·Granted May 13, 1986·6 cites·4 claims
- 0541US4641059ACathode ray tubeSONY CORP·Filed 1985·Granted Feb 3, 1987·7 cites·2 claims
- 0626US4720748ACathode ray tubeSONY CORP·Filed 1984·Granted Jan 19, 1988·0 cites·2 claims
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