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Inventor

Keiji Osaka

Inventor
Yokohama, JP

Overview

14→
Patents
1987–2007
Patent span
Physics
Primary field (CPC G)

Patents· 14 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus67%
B29CShaping or joining of plastics10%
B29DProducing particular articles from plastics or from substances in a plastic state5%
B29LIndexing scheme associated with subclass b29c, relating to particular articles5%
G01MTesting static or dynamic balance of machines or structures5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
Y10TTechnical subjects covered by former us classification5%
PatentTitleYear
7,234,881'MOLDING APPARATUS FOR A REINFORCEMENT RESIN COATING OF GLASS OPTICAL FIBER EXPOSING PORTION OF AN OPTICAL FIBER JUNCTION, METHOD FOR MOLDING REINFORCEMENT RESIN COATING OF A GLASS OPTICAL FIBER EXPOSING PORTION OF AN OPTICAL FIBER JUNCTION, AND OPTICAL FIBER CABLE'20076,553,791'Etching an optical fiber fusion splice'20036,287,020'Observation apparatus and fusion splicer for optical fibers'20016,190,057'Optical fiber ribbon fusion splicing apparatus'20016,105,480'Apparatus for separating ribbon-coated multicore optical fiber'20005,590,227'Optical connector apparatus'19965,530,782'Intermediate branching method for optical path'19965,524,166'Separating tool for multi-core ribbon fiber'19965,418,872'Optical connector connecting apparatus and optical connector connecting method'19955,384,878'Method for fusion connecting optical fibers utilizing V-grooves with nonconducting layer'19954,812,010'Apparatus for arranging a plurality of coated optical fibers and collective fusion splicing method using the apparatus'19894,750,804'Optical fiber connecting jig'19884,749,252'Method for splicing optical fibers'19884,715,876'Method of and apparatus for coupling multicore coated optical fibers'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2007Patents assigned to SUMITOMO ELECTRIC INDUSTRIES (14)· patent assignee history
1987–2007Based in Yokohama, JP· patent location history
1995–2000Patents assigned to NIPPON TELEGRAPH & TELEPHONE (3)· patent assignee history
1995–1996Patents assigned to SUMIDEN OPCOM LTD (2)· patent assignee history
1995–2003Based in Kanagawa, JP· patent location history
2001Based in Yokohami, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SUMITOMO ELECTRIC INDUSTRIES141987–2007
NIPPON TELEGRAPH & TELEPHONE31995–2000
SUMIDEN OPCOM LTD21995–1996
Locations
LocationPatentsSpan
Yokohama, JP101987–2007
Kanagawa, JP31995–2003
Yokohami, JP12001