Inventor · Tokyo, JP

Hiroki Ota

62Patents
4h-index
89Co-inventors
69Inventor score

Filing activity: May 15, 1996 → Mar 16, 2022

Most-cited inventions

PatentTitleAreaCited byStatus
US9073466B2 Vehicle seat Performing Operations; Transporting 11 Active
US8919874B2 Vehicle seat component Performing Operations; Transporting 10 Active
US8153055B2 Ferritic stainless steel with excellent heat resistance Chemistry; Metallurgy 5 Active
US9279172B2 Heat-resistance ferritic stainless steel Mechanical Engineering; Lighting; Heating 4 Active
US8607941B2 Steel sheet for brake disc, and brake disc Mechanical Engineering; Lighting; Heating 4 Active
US9624563B2 Stainless steel foil and catalyst carrier for exhaust gas purifying device using the foil Mechanical Engineering; Lighting; Heating 4 Active
US10000824B2 Material for cold-rolled stainless steel sheet and production method therefor Chemistry; Metallurgy 3 Active
US10254629B2 Electronic device Electricity 3 Active
US10551723B2 Electronic device Physics 3 Active
US9157137B2 Ferritic stainless steel excellent in oxidation resistance Chemistry; Metallurgy 3 Active
US10876183B2 High-strength seamless stainless steel pipe and method of manufacturing high-strength seamless stainless steel pipe Chemistry; Metallurgy 3 Active
US9273382B2 Stainless steel foil and catalyst carrier for exhaust gas purifying device using the foil Emerging Cross-Sectional Technologies 2 Active
US7200411B2 Portable information terminal and communication system Electricity 2 Expired
US6458221B1 Ferritic stainless steel plate Chemistry; Metallurgy 2 Expired
US10261396B2 Electronic device Physics 2 Active
US9777357B2 Stainless steel foil Mechanical Engineering; Lighting; Heating 2 Active
US10876182B2 High-strength seamless steel pipe for oil country tubular goods and method of producing the same Chemistry; Metallurgy 2 Active
USRE40950E1 Ferritic stainless steel plate General 2 Expired
US5900076A Bainitic steel materials having a less scattering of properties and method of producing the same Chemistry; Metallurgy 2 Expired
US9365915B2 Ferritic stainless steel Chemistry; Metallurgy 1 Active
US10844453B2 High-strength seamless steel pipe for oil country tubular goods and method of producing the same Chemistry; Metallurgy 1 Active
US10503053B2 Electronic device Physics 1 Active
US12269079B2 Rolling mill for diameter reducing rolling and method for manufacturing strip material Performing Operations; Transporting 1 Active
US6500280B2 Ferritic Cr-containing steel sheet having excellent ductility, formability, and anti-ridging properties Chemistry; Metallurgy 1 Expired
US11211088B2 Magnetic disc, aluminum alloy substrate for magnetic disc, and production method for aluminum alloy substrate Chemistry; Metallurgy 1 Active

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