Inventor · Hachioji, JP

Kenji Kawasaki

77Patents
14h-index
105Co-inventors
87Inventor score

Filing activity: Aug 16, 1977 → Jun 24, 2022

Most-cited inventions

PatentTitleAreaCited byStatus
US6025956A Incident-light fluorescence microscope Physics 112 Expired
USD705137S1 Radiator grill for automobile General 55 Active
US5668950A Network service system and communication unit for game machine and game machine capable of using said network service system Electricity 55 Expired
US6040940A Reflecting fluorescence microscope Physics 40 Expired
USD695168S1 Rear bumper for an automobile General 33 Active
USD705140S1 Rear bumper for automobile General 33 Active
USD705706S1 Front bumper for automobile General 26 Active
US5710663A Reflecting fluorescence microscope Physics 25 Expired
US5657433A Method for generating, managing and displaying information retrieval data on information processing system Electricity 24 Expired
USD744389S1 Rear bumper for automobile General 17 Active
US5664778A Network service system and communication unit for game machine and game machine capable of using said network service system Electricity 17 Expired
US6396628B1 Microscope transmitted-illumination apparatus Physics 16 Expired
US4818511A Process and apparatus for producing non-oxide compounds Chemistry; Metallurgy 15 Expired
US4947146A Electromagnetic contactor Electricity 15 Expired
US5761055A Driving pulse output limiting circuit Electricity 14 Expired
US5984783A Game machine having a communication terminal for playing games over a network service system Electricity 14 Expired
US6643061B2 Microscope transmitted-illumination apparatus Physics 14 Expired
US6691130B2 Method for creating browsing data of an information searching apparatus and method for searching information Emerging Cross-Sectional Technologies 13 Expired
US5661894A Method for assembling an electric motor employing a casing body having low dimensional accuracy Emerging Cross-Sectional Technologies 13 Expired
US6674582B2 Microscope zoom objective lens Physics 12 Expired
US6154218A Method for generating, managing and displaying information retrieval data on information processing system Electricity 11 Expired
USD695655S1 Front bumper for automobile General 10 Active
USD686124S1 Roof spoiler for automobile General 10 Active
US6157495A Afocal zoom lens system for stereoscopic microscopes Physics 10 Expired
US7986824B2 Predetermined site luminescence measuring method, predetermined site luminescence measuring apparatus, expression amount measuring method, and measuring apparatus Physics 10 Active

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