Inventor · Chigasaki, JP

Hisato Haraga

15Patents
12h-index
26Co-inventors
78Inventor score

Filing activity: Sep 19, 1988 → Apr 28, 2010

Most-cited inventions

PatentTitleAreaCited byStatus
US4955535A Automatically operating valve for regulating water flow and faucet provided with said valve Emerging Cross-Sectional Technologies 106 Expired
US4971106A Automatically operating valve for regulating water flow and faucet provided with said valve Emerging Cross-Sectional Technologies 99 Expired
US4967794A Automatically operating valve for regulating water flow and faucet provided with said valve Emerging Cross-Sectional Technologies 76 Expired
US4989277A Toilet bowl flushing device Emerging Cross-Sectional Technologies 60 Expired
US5085399A Automatically operating valve for regulating water flow and faucet provided with said valve Emerging Cross-Sectional Technologies 55 Expired
US5469586A Toilet bowl flushing device Fixed Constructions 46 Expired
US5457826A Whirlpool bath with an inverter-controlled circulating pump Human Necessities 42 Expired
US5245714A Whirlpool bath provided with hot water blow-off control Human Necessities 30 Expired
US5534120A Membraneless water electrolyzer Chemistry; Metallurgy 29 Expired
US5292479A Air treatment by multi-stacked plate asembly Performing Operations; Transporting 22 Expired
US5427503A Multi-stacked circular plate fan provided with blades Mechanical Engineering; Lighting; Heating 14 Expired
US4980933A Washing device for parts of human body Physics 12 Expired
US5144702A Blow-off nozzle structure capable of automatically varying the blow-off volume of water Human Necessities 5 Expired
US7799731B2 Photocatalyst element, method and device for preparing the same Chemistry; Metallurgy 1 Expired
US8022011B2 Photocatalyst element, method and device for preparing the same Chemistry; Metallurgy 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.