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Inventor

Masaru Hayakawa

Inventor
Tokyo, JP

Overview

3→
Patents
1987–2020
Patent span
Textiles
Primary field (CPC D)

Patents· 3 as inventor

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

A41Dprimary
A41DOuterwear13%
B22CFoundry moulding13%
D04HMaking textile fabrics, e.g. from fibres or filamentary material13%
D06MTreatment, not provided for elsewhere in class d06, of fibres, threads, yarns, fabrics, feathers or fibrous goods made from such materials13%
D10BIndexing scheme associated with sublasses of section d, relating to textiles13%
D21HPulp compositions13%
G01KMeasuring temperature13%
G21FProtection against x-radiation, gamma radiation, corpuscular radiation or particle bombardment13%
PatentTitleYear
10,622,113Radiation shielding sheet20206,997,607'Temperature sensor'20064,691,759'Binder for dry sand mold and method of its usage'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987Patents assigned to NIPPON PETROCHEMICALS CO LTD (1)· patent assignee history
1987–2020Based in Tokyo, JP· patent location history
2006Patents assigned to NGK SPARK PLUG CO (1)· patent assignee history
2006Based in Aichi, JP· patent location history
2020Patents assigned to TOMOEGAWA CO LTD (1)· patent assignee history
2020Patents assigned to TOPPAN PRINTING CO LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NGK SPARK PLUG CO12006
NIPPON PETROCHEMICALS CO LTD11987
TOMOEGAWA CO LTD12020
TOPPAN PRINTING CO LTD12020
Locations
LocationPatentsSpan
Tokyo, JP21987–2020
Aichi, JP12006