Inventor · Akishima, JP

Masami Hamada

7Patents
7h-index
34Co-inventors
55Inventor score

Filing activity: Oct 5, 1989 → Dec 26, 1995

Most-cited inventions

PatentTitleAreaCited byStatus
US5490015A Actuator apparatus Physics 70 Expired
US5122904A Operating microscope with drape and suction means for removing air from the drape Human Necessities 52 Expired
US5748366A Surgical microscope Human Necessities 39 Expired
US5579772A Surgical microscope system Physics 31 Expired
US5227914A Stereomicroscope including a single variable magnification optical system Physics 19 Expired
US5552929A Stereomicroscope Electricity 13 Expired
US5048941A Surgical miscroscope with a modular stand Physics 12 Expired

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