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Inventor

Toyohito Asanuma

Inventor
Yokohama, JP

Overview

4→
Patents
2004–2021
Patent span
Physics
Primary field (CPC G)

Patents· 4 as inventor

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

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer23%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry8%
B29CShaping or joining of plastics8%
B29LIndexing scheme associated with subclass b29c, relating to particular articles8%
C01FCompounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare-earth metals8%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds8%
C02FTreatment of water, waste water, sewage, or sludge8%
C04BLime, magnesia8%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices8%
G21FProtection against x-radiation, gamma radiation, corpuscular radiation or particle bombardment8%
PatentTitleYear
11,123,709Molded article20216,957,444'Optical disk and method of producing the same'20056,819,650'Optical disc having land pre-pits and variable groove depths'20046,733,957'Disk substrate and manufacturing method therefor, and disk manufactured by the disk substrate'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004–2005Patents assigned to VICTOR COMPANY OF JAPAN (3)· patent assignee history
2004–2005Based in Yokohama, JP· patent location history
2021Patents assigned to MITSUI MINING & SMELTING CO (1)· patent assignee history
2021Based in Ageo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
VICTOR COMPANY OF JAPAN32004–2005
MITSUI MINING & SMELTING CO12021
Locations
LocationPatentsSpan
Yokohama, JP32004–2005
Ageo, JP12021