Inventor · Fujisawa, JP

Koichi Shinohara

28Patents
11h-index
52Co-inventors
78Inventor score

Filing activity: Jul 13, 1977 → Feb 7, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US4220117A Apparatus for fabrication of magnetic recording media Physics 39 Expired
US4540618A Magnetic recording medium Emerging Cross-Sectional Technologies 39 Expired
US6830660B1 Method for producing metallurgical coke Chemistry; Metallurgy 37 Expired
US4323629A Metallic thin film magnetic recording medium Emerging Cross-Sectional Technologies 27 Expired
US4239835A Magnetic recording medium Emerging Cross-Sectional Technologies 27 Expired
US4645703A Magnetic recording medium Emerging Cross-Sectional Technologies 25 Expired
US5896520A Virtual computer system of multi-processor constitution Physics 20 Expired
US4514451A Polyester substrate for magnetic recording medium having oligomer protrusions thereon Emerging Cross-Sectional Technologies 18 Expired
US6826018B2 Disk drive with head supporting device Physics 17 Expired
US4450186A Method and device for manufacturing magnetic recording medium Electricity 15 Expired
US5023739A Tape cassette with a trapping layer having a corrosiveness which is equal to or higher than that of the magnetic recording layer on the tape Physics 13 Expired
US4380211A Vacuum evaporation system for deposition of thin films Chemistry; Metallurgy 10 Expired
US6965492B2 Rotor assembly, information-recording/-reproducing device using the rotor assembly and method of assembling the rotor assembly Mechanical Engineering; Lighting; Heating 9 Expired
US4393091A Method of vacuum depositing a layer on a plastic film substrate Chemistry; Metallurgy 5 Expired
US4564549A Magnetic recording media and process for fabricating the same Emerging Cross-Sectional Technologies 5 Expired
US8724434B2 Magnetic recording system and magnetic recording device Physics 4 Active
US4673617A Thin film magnetic recording media Emerging Cross-Sectional Technologies 4 Expired
US9543033B1 Semiconductor memory device, control method, and memory system Physics 2 Active
US9698408B2 Secondary battery Emerging Cross-Sectional Technologies 1 Active
US4386113A Method of making a magnetic recording medium Electricity 0 Expired
US10714787B2 Lithium ion secondary battery Emerging Cross-Sectional Technologies 0 Active
US12384048B2 Transfer apparatus Electricity 0 Active
US10147949B2 Negative electrode material for lithium ion battery Emerging Cross-Sectional Technologies 0 Active
US11183256B2 Semiconductor memory device and memory state detecting method Physics 0 Active
US10756342B2 Lithium ion secondary battery Emerging Cross-Sectional Technologies 0 Active

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