Inventor · Hitachi, JP

Shigeru Koibuchi

10Patents
6h-index
18Co-inventors
63Inventor score

Filing activity: Dec 22, 1982 → Nov 14, 2008

Most-cited inventions

PatentTitleAreaCited byStatus
US4698291A Photosensitive composition with 4-azido-2'-methoxychalcone Physics 59 Expired
US4499163A Soldering mask formed from a photosensitive resin composition and a photosensitive element Chemistry; Metallurgy 32 Expired
US4554237A Photosensitive resin composition and method for forming fine patterns with said composition Emerging Cross-Sectional Technologies 12 Expired
US4722883A Process for producing fine patterns Physics 11 Expired
US4792516A Photosensitive composition Physics 9 Expired
US5314783A Photosensitive quinone diazide and resin composition having high absorbency for a wavelength of 365 nm containing a benzotriazole ultraviolet absorbing compound Physics 6 Expired
US8721192B2 Optical connecting structure Emerging Cross-Sectional Technologies 5 Active
US4801519A Process for producing a pattern with negative-type photosensitive composition Physics 4 Expired
US5215858A Photosensitive resin composition and pattern formation using the same Physics 2 Expired
US7373064B2 Polymeric optical waveguide film Physics 0 Active

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