Inventor

Chiaki Nakamura

Inventor

Chiba, JP

Overview

31→

Patents

1981–2010

Patent span

Physics

Primary field (CPC G)

Patents· 31 as inventor

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

A61Bprimary

A61BDiagnosis19%

G01CMeasuring distances, levels or bearings7%

G01SRadio direction-finding7%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices7%

G04CElectromechanical clocks or watches7%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds5%

G04GElectronic time-pieces5%

B29CShaping or joining of plastics3%

G01DMeasuring not specially adapted for a specific variable3%

PatentTitleYear

7,807,333'Method and apparatus for development of lithographic printing plate precursor'2010 6,809,498'Power supply apparatus and electronic equipment'2004 6,798,718'Sensor timepiece, sensor timepiece data input system and method, and computer readable recording medium'2004 6,758,816'Pulse wave detector'2004 6,371,920'Pulse wave detecting device'2002 6,295,248'Electronic tide meter, method for calculating a high/low tide time and computer algorithm for executing the same'2001 6,246,362'Portable GPS signal receiving apparatus'2001 6,226,594'Electronic tide meter, spring tide day calculating method, and recording medium for the same'2001 6,155,983'Pulse wave detecting device and pulse measurer'2000 6,129,676'Movement rate monitor'2000 6,023,662'Measurement device, portable electronic instrument, and measurement method'2000 6,009,375'Portable GPS receiver'1999 5,926,131'GPS receiving apparatus'1999 5,908,396'Pitch measurement device, electronic instrument, and pitch measurement method'1999 5,905,460'Wrist watch type GPS receiver'1999 5,857,465'Biosignal display apparatus'1999 5,795,301'Display method used in portable pulse measuring device'1998 5,787,054'Portable electronic device'1998 5,766,132'Wrist-worn portable device and a wrist-worn pulse wave measuring device'1998 5,759,156'Period and frequency measurement device with correction device and method thereof'1998 5,705,793'Thin film electric heater, and method and apparatus for injection molding of plastics using the same'1998 5,697,374'Pulse rate monitor'1997 5,569,474'Mold for injection molding of plastics using thin film electric heater'1996 5,475,725'Pulse meter with pedometer function'1995 5,280,459'Electronic timepiece'1994 4,785,435'Self-chargeable electronic timepiece with operating voltage checking'1988 4,750,099'Circuit for charging capacitors'1988 4,684,601'Photosensitive image-forming material having a layer of photosensitive polyester modified with chain extender'1987 4,640,887'Photosensitive image-forming material comprised of carboxyl groups developable in aqueous alkaline base solutions'1987 4,591,545'Photosensitive image-forming material having a layer of photosensitive polyester modified with chain extender'1986 4,278,728'Embossed interior finishing materials having excellent cigarette mark resistance'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1987Patents assigned to DAINIPPON INK & CHEMICALS (4)· patent assignee history

1981–2004Based in Chiba, JP· patent location history

1986–2010Based in Tokyo, JP· patent location history

1988–2004Patents assigned to SEIKO INSTR INC (24)· patent assignee history

1996–1998Patents assigned to DAIHO IND CO LTD (2)· patent assignee history

1996–1998Based in Moriguchi, JP· patent location history

1998–2000Patents assigned to SEIKO EPSON CORP (8)· patent assignee history

2010Patents assigned to EASTMAN KODAK CO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SEIKO INSTR INC	24	1988–2004
SEIKO EPSON CORP	8	1998–2000
DAINIPPON INK & CHEMICALS	4	1981–1987
DAIHO IND CO LTD	2	1996–1998
EASTMAN KODAK CO	1	2010

Locations

Location	Patents	Span
Chiba, JP	21	1981–2004
Tokyo, JP	8	1986–2010
Moriguchi, JP	2	1996–1998