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Inventor

Yukio Terunuma

Inventor
Hitachinaka, JP

Overview

7→
Patents
1991–2014
Patent span
Performing operations
Primary field (CPC B)

Patents· 7 as inventor

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

B25Dprimary
B25DPercussive tools56%
Y10TTechnical subjects covered by former us classification22%
B23DPlaning11%
B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling11%
PatentTitleYear
8,672,049'Vibration drill unit'20147,556,457'Drilling system including drilling machine and compressor'20097,306,047'Impact hammer drill'20077,181,850'Saber saw having blade tiltable toward workpiece relative to saw body when cutting'20076,557,648'Operation mode switching mechanism for a hammer drill'20036,035,945'Operating mode switching apparatus for a hammer drill'20005,025,869'Impact drill'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2014Patents assigned to HITACHI KOKI KK (7)· patent assignee history
1991–2000Based in Hitachi, JP· patent location history
2003–2009Based in Hitachinaka, JP· patent location history
2014Patents assigned to ISHIKAWA SHIGERU (1)· patent assignee history
2014Patents assigned to KATAOKA KENJI (1)· patent assignee history
2014Patents assigned to OHTSU SHINKI (1)· patent assignee history
2014Patents assigned to TERUNUMA YUKIO (1)· patent assignee history
2014Based in Ibaraki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI KOKI KK71991–2014
ISHIKAWA SHIGERU12014
KATAOKA KENJI12014
OHTSU SHINKI12014
TERUNUMA YUKIOself12014
Locations
LocationPatentsSpan
Hitachinaka, JP42003–2009
Hitachi, JP21991–2000
Ibaraki, JP12014