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Inventor

Yoshihiko Imai

Inventor
Tokyo, JP

Overview

8→
Patents
1989–2009
Patent span
Performing operations
Primary field (CPC B)

Patents· 8 as inventor

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

B02Cprimary
B02CCrushing, pulverising, or disintegrating in general30%
C04BLime, magnesia20%
G11BInformation storage based on relative movement between record carrier and transducer20%
H01PWaveguides20%
B05CApparatus for applying fluent materials to surfaces, in general10%
PatentTitleYear
7,587,652'Variable power distributor, error detection method thereof, and set value correction method'20097,256,666'Band rejection filter with attenuation poles'20075,950,937'Alumina-zirconia sintered body, production thereof, and impact grinder using said alumina-zirconia sintered body'19995,877,105'Alumina-zirconia sintered body, production thereof, and impact grinder using said alumina-zirconia sintered body'19995,845,856'Pin mill type crusher'19985,286,294'Vacuum coating apparatus'19944,958,314'Information recording/reproducing apparatus'19904,841,498'Information recording/reproducing apparatus with means for substituting predetermined good sectors for defective ones'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1990Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (2)· patent assignee history
1989–1990Based in Hirakata, JP· patent location history
1994Patents assigned to GEN GEN CHEMICAL IND (1)· patent assignee history
1994Based in Nagoya, JP· patent location history
1998–1999Patents assigned to KANSAI MATEC CO LTD (3)· patent assignee history
1998Based in Osaka, JP· patent location history
1999Patents assigned to HITACHI CHEMICAL CO LTD (2)· patent assignee history
1999Based in Anjo, JP· patent location history
2007–2009Patents assigned to MITSUBISHI ELECTRIC CORP (2)· patent assignee history
2007–2009Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KANSAI MATEC CO LTD31998–1999
HITACHI CHEMICAL CO LTD21999
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD21989–1990
MITSUBISHI ELECTRIC CORP22007–2009
GEN GEN CHEMICAL IND11994
Locations
LocationPatentsSpan
Tokyo, JP22007–2009
Anjo, JP21999
Hirakata, JP21989–1990
Osaka, JP11998
Nagoya, JP11994