Inventor · Hirakata, JP

Eisuke Sawai

10Patents
4h-index
18Co-inventors
53Inventor score

Filing activity: Jun 12, 1984 → Dec 28, 2001

Most-cited inventions

PatentTitleAreaCited byStatus
US6590741B1 Magnetic head having grooves to enhance contact with magnetic recording media and magnetic recording/reproducing apparatus Physics 9 Expired
US5170301A Magnetic head having core parts joined by low-melting point crystallized glass with composite gap Emerging Cross-Sectional Technologies 6 Expired
US4755898A Amorphous magnetic head Physics 5 Expired
US4890379A Method for manufacturing magnetic head Emerging Cross-Sectional Technologies 4 Expired
US4985796A Magnetic head with a tape contacting surface having a metal filled channel therein Physics 4 Expired
US4841401A Amorphous magnetic head Physics 2 Expired
US6150044A Magnetic head Emerging Cross-Sectional Technologies 2 Expired
US6433958B1 Magnetic head, method for producing the same, video recording and reproduction apparatus including the magnetic head, and video camera including the magnetic head Emerging Cross-Sectional Technologies 1 Expired
US5208971A Process of manufacturing a magnetic head Emerging Cross-Sectional Technologies 1 Expired
US6588092B2 Method for producing a magnetic head, the magnetic head including a pair of magnetic core halves Emerging Cross-Sectional Technologies 0 Expired

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