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Inventor

Tadatoshi Higashi

Inventor
Yokohama, JP

Overview

6→
Patents
1977–1999
Patent span
Electricity
Primary field (CPC H)

Patents· 6 as inventor

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

H01Jprimary
H01JElectric discharge tubes or discharge lamps60%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices10%
H04NPictorial communication, e.g. television10%
H05BElectric heating10%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications10%
PatentTitleYear
6,002,197'Metal halide lamp light source device having conducting wire positioned to prevent it from casting a shadow'19995,723,944'Metal halide lamp of the short arc type'19985,592,050'Metal halide lamp'19975,479,065'Metal halide discharge lamp suitable for an optical light source having a bromine to halogen ratio of 60-90%, a wall load substantially greater than 40 W/cm.sup.2, and a D.C. potential between the anode and cathode'19954,988,918'Short arc discharge lamp'19914,024,425'Metal halide lamps'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977Patents assigned to TOKYO SHIBAURA ELECTRIC CO (1)· patent assignee history
1977–1995Based in Yokohama, JP· patent location history
1991–1995Patents assigned to TOSHIBA LIGHTING & TECHNOLOGY (2)· patent assignee history
1997–1999Patents assigned to USHIO ELECTRIC INC (3)· patent assignee history
1997Based in Tokyo, JP· patent location history
1998–1999Based in Himeji, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
USHIO ELECTRIC INC31997–1999
TOSHIBA LIGHTING & TECHNOLOGY21991–1995
TOKYO SHIBAURA ELECTRIC CO11977
Locations
LocationPatentsSpan
Yokohama, JP31977–1995
Himeji, JP21998–1999
Tokyo, JP11997