Inventor

Noritsugu Umehara

Inventor

Sendai, JP

Overview

8→

Patents

1989–2021

Patent span

Performing operations

Primary field (CPC B)

Patents· 8 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B24Bprimary

B24BMachines, devices, or processes for grinding or polishing31%

B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling13%

C23CCoating metallic material13%

B23BTurning6%

C10MLubricating compositions6%

C10NIndexing scheme associated with subclass c10m relating to lubricating compositions6%

F05CIndexing scheme relating to materials, material properties or material characteristics for machines, engines or pumps other than non-positive-displacement machines or engines6%

F16CShafts6%

H01JElectric discharge tubes or discharge lamps6%

H05HPlasma technique6%

PatentTitleYear

11,097,357Drill bit and hole formation method2021 10,669,624Sliding member and method for producing the same2020 8,752,503'Plasma processing device, plasma processing method, and plasma surface processing method'2014 7,252,576'Method and apparatus for magnetic float polishing'2007 5,404,680'Method for polishing slight area of surface of workpiece and tool therefor'1995 5,185,957'Micro-abrading method and micro-abrading tool'1993 5,076,026'Microscopic grinding method and microscopic grinding device'1991 4,821,466'Method for grinding using a magnetic fluid and an apparatus thereof'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1993Based in Sendai, JP· patent location history

1991–1995Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (2)· patent assignee history

1995Based in Miyagi, JP· patent location history

2007Based in Aichi, JP· patent location history

2014–2020Patents assigned to KOUSAKA HIROYUKI (2)· patent assignee history

2014–2020Patents assigned to UMEHARA NORITSUGU (2)· patent assignee history

2014–2020Patents assigned to UNIV NAGOYA NAT UNIV CORP (2)· patent assignee history

2014–2020Based in Nagoya, JP· patent location history

2020Patents assigned to ICHIMURA KAZUYUKI (1)· patent assignee history

2021Based in Nagoya-shi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KOUSAKA HIROYUKI	2	2014–2020
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD	2	1991–1995
UMEHARA NORITSUGUself	2	2014–2020
UNIV NAGOYA NAT UNIV CORP	2	2014–2020
ICHIMURA KAZUYUKI	1	2020

Locations

Location	Patents	Span
Sendai, JP	3	1989–1993
Nagoya, JP	2	2014–2020
Nagoya-shi, JP	1	2021
Aichi, JP	1	2007
Miyagi, JP	1	1995