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Inventor

Yoshitada Doi

Inventor
Koshigaya, JP

Overview

22→
Patents
1994–2020
Patent span
LOC
Primary field

Patents· 22 as inventor

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

LOC23primary
LOC2348%
F16KValves16%
Y10TTechnical subjects covered by former us classification16%
F15BSystems acting by means of fluids in general13%
G05DSystems for controlling or regulating non-electric variables3%
H01FMagnets3%
PatentTitleYear
10,859,172Switching valve2020D0835755Solenoid valve2018D0834146Solenoid valve2018D0832400Solenoid valve2018D0830513Solenoid valve2018D0830511Solenoid valve2018D0830514Solenoid valve2018D0830512Solenoid valve2018D0828499Electromagnetic valve2018D0828498Electromagnetic valve2018D0801479'Electromagnetic valve'2017D0750745'Electromagnetic valve'2016D0734833'Electromagnetic valve'2015D0734432'Pinch valve'2015D0725231'Electromagnetic valve'2015D0725232'Electromagnetic valve'20157,903,383'Solenoid valve driving circuit and solenoid valve'20116,675,830'Valve unit capable of monitoring output pressure'20045,771,918'Device for connecting output pipe to valve'19985,586,570'Directional control valve'19965,459,953'Manifold valve'19955,333,647'Manifold valve'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994–2020Patents assigned to SMC CORP (18)· patent assignee history
1994Based in Soka, JP· patent location history
1995–2011Patents assigned to SMC KK (4)· patent assignee history
1995–1998Based in Ibaraki, JP· patent location history
2004Based in Tsukuba, JP· patent location history
2011–2020Based in Koshigaya, JP· patent location history
2015–2017Patents assigned to DOI YOSHITADA (6)· patent assignee history
2015–2016Patents assigned to SATO HIDEHARU (3)· patent assignee history
2015Patents assigned to HATANO KATSUSHI (2)· patent assignee history
2015–2017Based in Tsukubamirai, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SMC CORP181994–2020
DOI YOSHITADAself62015–2017
SMC KK41995–2011
SATO HIDEHARU32015–2016
HATANO KATSUSHI22015
Locations
LocationPatentsSpan
Koshigaya, JP112011–2020
Tsukubamirai, JP62015–2017
Ibaraki, JP31995–1998
Tsukuba, JP12004
Soka, JP11994