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Inventor

Hirofumi Ienaga

Inventor
Tokyo, JP

Overview

8→
Patents
1987–2020
Patent span
Physics
Primary field (CPC G)

Patents· 8 as inventor

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

G01Bprimary
G01BMeasuring length, thickness or similar linear dimensions33%
B23BTurning11%
B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling11%
B60JWindows, windscreens, non-fixed roofs, doors, or similar devices for vehicles11%
G01NInvestigating or analysing materials by determining their chemical or physical properties11%
G06FElectric digital data processing11%
Y10TTechnical subjects covered by former us classification11%
PatentTitleYear
10,697,897Inspection system, inspection device, and inspecting method202010,132,624Normal detection method, normal detection device, and machining machine provided with normal detection function20189,619,433'Normal-line detection method, normal-line detection device, and machine tool having normal-line detection function'20179,486,859'Drill'20169,429,412'Hole-shape measuring apparatus and hole-shape measuring method'20164,953,910'Openable roof control device of wheeled motor vehicle'1990D0295899'Automobile rear combination lamp'1988D0293095'Automobile radiator grill'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1990Patents assigned to NISSAN MOTOR (3)· patent assignee history
1987–1988Based in Kanagawa, JP· patent location history
1990Based in Kawasaki, JP· patent location history
2016–2020Patents assigned to MITSUBISHI HEAVY IND LTD (5)· patent assignee history
2016–2018Patents assigned to FUJITA YOSHIHITO (2)· patent assignee history
2016–2018Patents assigned to IENAGA HIROFUMI (2)· patent assignee history
2016–2018Patents assigned to NAKAMURA MIKIO (2)· patent assignee history
2016–2020Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI HEAVY IND LTD52016–2020
NISSAN MOTOR31987–1990
FUJITA YOSHIHITO22016–2018
IENAGA HIROFUMIself22016–2018
NAKAMURA MIKIO22016–2018
Locations
LocationPatentsSpan
Tokyo, JP52016–2020
Kanagawa, JP21987–1988
Kawasaki, JP11990