Inventor

Kazuo Shiba

Inventor

Tokorozawa, JP

Overview

9→

Patents

1984–2008

Patent span

Performing operations

Primary field (CPC B)

Patents· 9 as inventor

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

B23Qprimary

B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling31%

B24BMachines, devices, or processes for grinding or polishing19%

G11BInformation storage based on relative movement between record carrier and transducer13%

B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts6%

B29LIndexing scheme associated with subclass b29c, relating to particular articles6%

F16CShafts6%

G01BMeasuring length, thickness or similar linear dimensions6%

G05BControl or regulating systems in general6%

Y10TTechnical subjects covered by former us classification6%

PatentTitleYear

7,372,784'Optical head apparatus'2008 6,785,200'Diffraction grating element and optical pickup device incorporating the same'2004 4,669,359'Positioning system'1987 4,546,573'Grinding machine'1985 4,543,724'Measuring device for oblique angle'1985 4,536,993'Grinding machine'1985 4,523,410'Composite guide mechanism'1985 4,504,048'Micro-adjustable displacement and rotation setting apparatus'1985 4,481,742'Machine tool elevating and guiding apparatus'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–1987Patents assigned to CITIZEN WATCH CO LTD (7)· patent assignee history

1984–1987Based in Tokorozawa, JP· patent location history

1985Based in Tokyo, JP· patent location history

2004Patents assigned to SANKYO SEIKI SEISAKUSHO KK (1)· patent assignee history

2004–2008Based in Nagano, JP· patent location history

2008Patents assigned to NIDEC SANKYO CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CITIZEN WATCH CO LTD	7	1984–1987
NIDEC SANKYO CORP	1	2008
SANKYO SEIKI SEISAKUSHO KK	1	2004

Locations

Location	Patents	Span
Tokorozawa, JP	6	1984–1987
Nagano, JP	2	2004–2008
Tokyo, JP	1	1985