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Inventor

Jun Yamakawa

Inventor
Tokyo, JP

Overview

16→
Patents
1993–2018
Patent span
Performing operations
Primary field (CPC B)

Patents· 16 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus25%
A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing10%
B29CShaping or joining of plastics10%
Y10TTechnical subjects covered by former us classification10%
B29LIndexing scheme associated with subclass b29c, relating to particular articles8%
B26FPerforating5%
B29BPreparation or pretreatment of the material to be shaped5%
Y02WClimate change mitigation technologies related to wastewater treatment or waste management5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
B05DProcesses for applying fluent materials to surfaces, in general3%
PatentTitleYear
10,093,831Copolymerized polysilazane, manufacturing method therefor, composition comprising same, and method for forming siliceous film using same20187,452,288'Method of manufacturing a golf ball'20087,273,574'Golf ball manufacturing method'20077,204,290'Apparatus for removing cover of golf ball from core'20076,833,098'Method of removing cover of golf ball from core'20046,793,403'Method of producing ferrule and ferrule'20046,767,196'Manufacturing apparatus for producing a multi-fiber optical ferrule'20046,572,275'Optical connector'20036,435,728'OPTICAL CONNECTOR HOUSING, OPTICAL CONNECTOR USING THE OPTICAL CONNECTOR HOUSING, AND CONNECTION STRUCTURE BETWEEN AN OPTICAL CONNECTOR USING THE SAME OPTICAL CONNECTOR HOUSING AND AN OPTICAL COMPONENT'20026,238,104'Fiber optic connector, supporting member used therein, and method of connecting the fiber optic connector to a fiber optic cable'20016,086,704'Method of manufacturing an optical connector'20006,045,271'Ferrule for optical connector and method for manufacturing optical connector using the ferrule'20005,631,985'Optical connector wherein an arrangement plane of positioning pin holes and optical fibers is inclined with respect to an abutting direction'19975,600,747'Method of collectively connecting multiple optical connectors and aligning and positioning jig for multiple optical connectors used in the method'19975,259,050'Multicore optical connector with partitions to separate the optical fibers into groups'19935,185,825'Optical switching connector'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2004Patents assigned to FURUKAWA ELECTRIC CO LTD (10)· patent assignee history
1993–2000Patents assigned to NIPPON TELEGRAPH & TELEPHONE (5)· patent assignee history
1993–2004Based in Tokyo, JP· patent location history
1993Based in Ichihara, JP· patent location history
2000–2001Based in Chiba, JP· patent location history
2004–2007Patents assigned to SUMITOMO RUBBER IND (2)· patent assignee history
2004–2008Based in Kobe, JP· patent location history
2007–2008Patents assigned to SRI SPORTS LTD (2)· patent assignee history
2018Patents assigned to AZ ELECTRONIC MAT LUXEMBOURG SARL (1)· patent assignee history
2018Based in Kakegawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FURUKAWA ELECTRIC CO LTD101993–2004
NIPPON TELEGRAPH & TELEPHONE51993–2000
SRI SPORTS LTD22007–2008
SUMITOMO RUBBER IND22004–2007
AZ ELECTRONIC MAT LUXEMBOURG SARL12018
Locations
LocationPatentsSpan
Tokyo, JP71993–2004
Kobe, JP42004–2008
Chiba, JP32000–2001
Kakegawa, JP12018
Ichihara, JP11993