Inventor · Yatomi, JP

Hiroshi Handa

61Patents
7h-index
53Co-inventors
75Inventor score

Filing activity: Sep 22, 1989 → Feb 28, 2022

Most-cited inventions

PatentTitleAreaCited byStatus
US8682216B2 Developing cartridge and process cartridge for stably rotating developing roller Physics 37 Active
US8494419B2 Processing unit including developing roller having roller body and covering layer covering circumferential surface of roller body, and supporting member that supports developing roller Physics 34 Active
US9611465B2 Pharmaceutical composition containing core factor involved in proliferation and differentiation of central nervous cell Physics 28 Active
US8251885B2 Applications of alternating magnetic fields on magnetic nanoparticles Human Necessities 19 Active
US5122600A DNA-immobilized microspheres and a process for purifying a DNA-transcription-controlling factor using the same Chemistry; Metallurgy 14 Expired
US9217743B2 Screening method utilizing thalidomide-targeting factor Physics 8 Active
US5986072A Isolating substances with 3-[(5-(2,3-dimethoxy-6-methyl-1,4-benzoquinonyl)]-2-nonyl-2-propionic acid coupled to a microsphere Emerging Cross-Sectional Technologies 7 Expired
US9632077B2 Detection system of test substance Physics 6 Active
US5629406A Inhibitors of HIV protease Emerging Cross-Sectional Technologies 5 Expired
US10272117B2 Methods of using an activator of cereblon for neural cell expansion and the treatment of central nervous system disorders Physics 3 Active
US8781377B2 Developing device Physics 3 Active
US8923711B2 Image forming apparatus configured to control a transfer bias Physics 3 Active
US8855524B2 Developing apparatus, process cartridge and image forming apparatus Physics 2 Active
US7885564B2 Image forming device Physics 2 Active
US9250603B2 Developing cartridge and process cartridge for stably rotating developing roller Physics 2 Active
US9317008B2 Image forming apparatus employing cleanerless system Physics 2 Active
US9625875B2 Developing cartridge and process cartridge for stably rotating developing roller Physics 2 Active
US6545132B1 Microsphere containing glycidyl methacrylate covered polymer and spacer coupled compound for isolating substances Emerging Cross-Sectional Technologies 2 Expired
US9494580B2 Polymer particle containing fluorescent molecule and method for producing the same Physics 1 Active
US9164420B2 Developing device having seal member and recess portion in the developing roller Physics 1 Active
US8265529B2 Configuration of a developing device blade and image forming apparatus Physics 1 Active
US8852555B2 Process for production of surface-coated inorganic particles Chemistry; Metallurgy 1 Active
US6703207B2 Method of screening substances with a glycidyl methacrylate covered styrene-glycidyl methacrylate polymer Emerging Cross-Sectional Technologies 1 Expired
US9348299B2 Developing cartridge and process cartridge for stably rotating developing roller Physics 1 Active
US9020395B2 Developing cartridge and process cartridge for stably rotating developing roller Physics 1 Active

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