Inventor

UMEHARA NORITSUGU

JP8 patents

⚠️ This page may combine multiple inventors who share the name “UMEHARA NORITSUGU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

2 patents

US5404680AApr 11, 1995

Method for polishing slight area of surface of workpiece and tool therefor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations92

US5076026ADec 31, 1991

Microscopic grinding method and microscopic grinding device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD31 citations90

KATO KOJI

1 patent

US4821466AApr 18, 1989

Method for grinding using a magnetic fluid and an apparatus thereof

KATO KOJI77 citations95

MATSUSHITA ELECTRIC CO LTD

1 patent

US5185957AFeb 16, 1993

Micro-abrading method and micro-abrading tool

MATSUSHITA ELECTRIC CO LTD30 citations92

UNIV OKLAHOMA STATE

1 patent

US7252576B1Aug 7, 2007

Method and apparatus for magnetic float polishing

UNIV OKLAHOMA STATE7 citations64

MANABE KAZUYOSHI

1 patent

US10669624B2Jun 2, 2020

Sliding member and method for producing the same

MANABE KAZUYOSHI1 citations48

MITSUBISHI GAS CHEMICAL CO

1 patent

US11097357B2Aug 24, 2021

Drill bit and hole formation method

MITSUBISHI GAS CHEMICAL CO0 citations45

KOUSAKA HIROYUKI

1 patent

US8752503B2Jun 17, 2014

Plasma processing device, plasma processing method, and plasma surface processing method

KOUSAKA HIROYUKI0 citations37