Inventor
Takashi Tsumanuma
Inventor
Sakura, JP
Overview
Patents· 24 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus42%
C03BManufacture, shaping, or supplementary processes16%
A61BDiagnosis12%
C03CChemical composition of glasses, glazes or vitreous enamels4%
G09FDisplaying4%
Y02PClimate change mitigation technologies in the production or processing of goods4%
A61CDentistry2%
A61NElectrotherapy2%
B23KSoldering or unsoldering2%
F21VFunctional features or details of lighting devices or systems thereof2%
PatentTitleYear
8,945,195'Small bowel endoscope of ileus tube type that enables laser inspection and therapy'20158,884,187'Welding observation apparatus'20148,870,430'Display apparatus and lighting window'20148,372,316'Display apparatus, manufacturing method thereof, pattern display method, blind apparatus, and blind method'20138,208,774'Silica-based single core optical fiber, silica-based multi core optical fiber, and fabrication method for the same'20128,208,775'Silica-based single core optical fiber, silica-based multi core optical fiber, and fabrication method for the same'20128,189,976'Endoscope system'20127,813,607'Optical fiber bundle unit for transmitting ultraviolet light'20107,806,578'Illumination device having light guide body'20107,734,134'Fiber scope'20107,582,057'Endoscopic system using an extremely fine composite optical fiber'20097,440,673'Radiation resistant single-mode optical fiber and method of manufacturing thereof'20087,418,178'Multi-core fiber'20087,221,834'Image fiber'20077,209,617'Processing method for an image fiber'20077,158,704'Image fiber'20077,072,548'Processing method for an image fiber'20066,892,012'Optical fiber bundle unit for transmitting ultraviolet light'20056,549,333'Endoscope ocular with microscope gripping mechanism and endoscope holder and endoscope fixing method'20036,129,721'Medical laser treatment device and laser probe for the same'20005,742,429'Device for stereoscopic visualization including a stereomicroscope and fiberscope'19985,048,923'Image fiber, image fiber preform, and manufacturing processes thereof'19914,896,941'Image-transmitting fiber'19904,770,493'Heat and radiation resistant optical fiber'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–2015Patents assigned to FUJIKURA LTD (23)· patent assignee history
1988–1990Patents assigned to DORYOKURO KAKUNENRYO (2)· patent assignee history
1988–2015Based in Sakura, JP· patent location history
2012–2015Patents assigned to TSUMANUMA TAKASHI (7)· patent assignee history
2012–2015Patents assigned to NAKATATE KENICHI (3)· patent assignee history
2012Patents assigned to HAYASHI KAZUYUKI (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FUJIKURA LTD | 23 | 1988–2015 |
| TSUMANUMA TAKASHIself | 7 | 2012–2015 |
| NAKATATE KENICHI | 3 | 2012–2015 |
| DORYOKURO KAKUNENRYO | 2 | 1988–1990 |
| HAYASHI KAZUYUKI | 2 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Sakura, JP | 24 | 1988–2015 |