Inventor
Takashi Serizawa
Inventor
Tokyo, JP
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus31%
G03GElectrography15%
A61BDiagnosis12%
C03CChemical composition of glasses, glazes or vitreous enamels12%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests12%
B29CShaping or joining of plastics4%
B29DProducing particular articles from plastics or from substances in a plastic state4%
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. inserts4%
G01GWeighing4%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices4%
PatentTitleYear
7,477,937'Bioelectrical impedance measuring apparatus'20097,167,671'Toner draining mechanism, collected toner container, and image forming apparatus'20077,024,130'Rotating body, cooling apparatus that cools a rotating body, and image forming apparatus that uses a rotating body and a cooling apparatus'20066,957,028'Image forming apparatus having a blade member with a semi-conductive member installed there on'20056,909,860'Image forming apparatus having a gap between toner-supplying and developing rollers'20056,618,616'Bioelectrical impedance measuring apparatus'20036,532,385'Living body measuring apparatus with built-in weight meter'20035,032,000'Gradient index-type optical device and process for production thereof'19914,971,423'Gradient-index-type optical device'19904,783,141'Array lens'19884,783,155'Optical device with variably shaped optical surface and a method for varying the focal length'19884,781,445'Optical device having positionally changeable optical surfaces and a method of varying an image forming position'19884,778,256'Process for producing optical element'19884,714,326'Method and element for optical modulation'19874,712,882'Variable focal length lens'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–1991Patents assigned to CANON KK (8)· patent assignee history
1987–1988Based in Yokohama, JP· patent location history
1990Based in Sagamihara, JP· patent location history
1991Based in Atsugi, JP· patent location history
2003–2009Patents assigned to TANITA SEISAKUSHO KK (3)· patent assignee history
2003–2009Based in Tokyo, JP· patent location history
2005–2007Patents assigned to OKI DATA KK (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CANON KK | 8 | 1987–1991 |
| OKI DATA KK | 4 | 2005–2007 |
| TANITA SEISAKUSHO KK | 3 | 2003–2009 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 7 | 2003–2009 |
| Yokohama, JP | 6 | 1987–1988 |
| Atsugi, JP | 1 | 1991 |
| Sagamihara, JP | 1 | 1990 |