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Inventor

Tetsuo Imai

Inventor
Tokyo, JP

Overview

15→
Patents
1986–2015
Patent span
Chemistry
Primary field (CPC C)

Patents· 15 as inventor

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

B62Bprimary
B62BHand-propelled vehicles, e.g. hand carts or perambulators13%
H04LTransmission of digital information, e.g. telegraphic communication13%
A47LDomestic washing or cleaning9%
C23CCoating metallic material9%
B22FWorking metallic powder4%
C11DDetergent compositions4%
C22BProduction and refining of metals4%
C22CAlloys4%
C23GCleaning or de-greasing of metallic material by chemical methods other than electrolysis4%
C25DProcesses for the electrolytic or electrophoretic production of coatings4%
PatentTitleYear
9,017,563'Plating method of circuit substrate, production method of plated circuit substrate, and silver etching liquid'20158,309,164'Metallized substrate and method for producing the same'20127,684,417'Method of migrating processes between networks and network system thereof'20107,603,480'System using pseudo redundant configurator to switch network devices between operating and standby states'20097,443,800'Method and apparatus for designing a spanning tree virtual network'20087,383,608'Vacuum-cleaner suction tool and vacuum cleaner using the same'20087,311,742'Vacuum cleaner'20076,576,600'Detergent'20036,168,766'Process for leaching copper from copper sulfide using bacteria'2001D0431698'Rotary brush for electric vacuum cleaner'20004,919,441'Vehicle with steering-controlled torsion bar stabilizer'19904,815,759'Vehicle with steering-controlled torsion bar stabilizer'19894,804,198'Vehicle with steering-controlled torsion bar stabilizer'1989D0287755'Ultrasonic humidifier'1987D0283835'Combined bidet toilet seat and cover'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–1987Based in Nagano, JP· patent location history
1989–1990Patents assigned to YAMAHA MOTOR CO LTD (3)· patent assignee history
1989–1990Based in Iwata, JP· patent location history
2000–2008Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (3)· patent assignee history
2000–2008Based in Shiga, JP· patent location history
2003–2015Patents assigned to TOKUYAMA CORP (3)· patent assignee history
2008–2010Patents assigned to NEC CORP (3)· patent assignee history
2008–2010Based in Tokyo, JP· patent location history
2012–2015Patents assigned to IMAI TETSUO (2)· patent assignee history
2012–2015Based in Yamaguchi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD32000–2008
NEC CORP32008–2010
TOKUYAMA CORP32003–2015
YAMAHA MOTOR CO LTD31989–1990
IMAI TETSUOself22012–2015
Locations
LocationPatentsSpan
Tokyo, JP32008–2010
Shiga, JP32000–2008
Yamaguchi, JP22012–2015
Iwata, JP21989–1990
Nagano, JP21986–1987