Inventor · Tokyo, JP

Hisashi Maejima

16Patents
12h-index
20Co-inventors
78Inventor score

Filing activity: Sep 19, 1978 → Aug 30, 2013

Most-cited inventions

PatentTitleAreaCited byStatus
USD623841S1 Shoe upper General 90 Expired
USD697299S1 Shoe upper General 66 Active
USD574590S1 Shoe upper General 53 Expired
USD659986S1 Shoe upper General 49 Expired
US5025284A Exposure method and exposure apparatus Physics 37 Expired
US4544318A Manufacturing system Emerging Cross-Sectional Technologies 36 Expired
US4699505A Exposure method and exposure apparatus Physics 33 Expired
US5497331A Semiconductor integrated circuit device fabrication method and its fabrication apparatus Emerging Cross-Sectional Technologies 30 Expired
US6174222A Process for fabrication of semiconductor device, semiconductor wafer for use in the process and process for the preparation of the wafer Electricity 20 Expired
US4783225A Wafer and method of working the same Emerging Cross-Sectional Technologies 19 Expired
US4974018A Exposure method and exposure apparatus Physics 16 Expired
US4477182A Pattern exposing apparatus Physics 15 Expired
US5230747A Wafer having chamfered bend portions in the joint regions between the contour of the wafer and the cut-away portion of the wafer Emerging Cross-Sectional Technologies 11 Expired
US5279992A Method of producing a wafer having a curved notch Emerging Cross-Sectional Technologies 10 Expired
US4218136A Method of and apparatus for aligning photomask Physics 6 Expired
USRE40139E1 Wafer having chamfered bend portions in the joint regions between the contour of the cut-away portion of the wafer General 0 Expired

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