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Inventor

Atsushi Kumakura

Inventor
Osaka, JP

Overview

15→
Patents
1991–2007
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 15 as inventor

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

F16Hprimary
F16HGearing68%
F02BInternal-combustion piston engines14%
B23PMetal-working not otherwise provided for5%
F01LCyclically operating valves for machines or engines5%
F02FCylinders, pistons or casings, for combustion engines5%
Y10TTechnical subjects covered by former us classification5%
PatentTitleYear
7,226,376'Hydraulic tensioner'20077,140,604'Parts retaining panel and method of mounting and securing parts'20067,137,916'Movable guide for transmission device'20066,916,264'Tensioner having protrusion-preventing mechanism for a plunger'20056,645,102'Pivotally movable plastic guide for power transmission device'20036,585,614'Guide for chain drive'20036,428,435'Tensioner lever for chain drive'20026,095,938'Plate base of guide for chain drive'20006,062,998'Shoe for guiding the running of a transmission chain'20005,961,411'Traveling guide shoe for a roller chain'19995,702,318'Chain tensioning device'19975,366,418'Chain guide device in engine'19945,318,482'Chain guide having improved arm-shoe attachment feature'19945,088,966'Tensioner having pad made of plastics'19925,045,032'Chain guide having shoe made of plastics'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2007Patents assigned to TSUBAKIMOTO CHAIN CO (15)· patent assignee history
1991–2000Based in Tokorozawa, JP· patent location history
1994Based in Takatsuki, JP· patent location history
1997–2000Based in Iruma, JP· patent location history
2002–2007Based in Osaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TSUBAKIMOTO CHAIN CO151991–2007
Locations
LocationPatentsSpan
Osaka, JP72002–2007
Tokorozawa, JP41991–2000
Iruma, JP21997–2000
Takatsuki, JP21994