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Inventor

Nobuo Shigematsu

Inventor
Tokyo, JP

Overview

8→
Patents
1985–2020
Patent span
Human necessities
Primary field (CPC A)

Patents· 8 as inventor

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

A62Bprimary
A62BDevices, apparatus or methods for life-saving46%
A41DOuterwear15%
A61MDevices for introducing media into, or onto, the body15%
A42BHats8%
A61FFilters implantable into blood vessels8%
Y10TTechnical subjects covered by former us classification8%
PatentTitleYear
10,576,313Detachable connector20208,671,943'Breathing apparatus'20147,086,400'Mask'20065,829,433'Inhalation valve'19984,991,577'Exhalation valve means of a respiration mask'19914,892,094'Pressure responsive diaphragm valve'19904,748,695'Face shield assembly'19884,501,272'Mask'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–2020Patents assigned to SHIGEMATSU WORKS (7)· patent assignee history
1985–1991Based in Urawa, JP· patent location history
1998Patents assigned to SHIGERMATSU WORKS CO LTD (1)· patent assignee history
1998–2020Based in Tokyo, JP· patent location history
2014Patents assigned to IDE HIROYUKI (1)· patent assignee history
2014Patents assigned to SHIGEMATSU NOBUO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHIGEMATSU WORKS71985–2020
IDE HIROYUKI12014
SHIGEMATSU NOBUOself12014
SHIGERMATSU WORKS CO LTD11998
Locations
LocationPatentsSpan
Tokyo, JP41998–2020
Urawa, JP41985–1991