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Inventor

Toyokatsu Okamoto

Inventor
Hikone, JP

Overview

8→
Patents
1991–2003
Patent span
Electricity
Primary field (CPC H)

Patents· 8 as inventor

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

H02Pprimary
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters50%
H02KDynamo-electric machines25%
B26BHand-held cutting tools not otherwise provided for8%
H02JElectric power networks8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
PatentTitleYear
6,538,402'Self-oscillation system for driving a linear oscillatory actuator around its resonant frequency'20036,441,571'Vibrating linear actuator and method of operating same'20026,351,089'Control system for a linear vibration motor'20026,181,090'Drive control method for linear oscillating motors and a linear oscillating motor'20016,133,701'Driving circuit for oscillatory actuator'20005,955,799'Linear vibration motor and method for controlling vibration thereof'19995,736,797'Linear oscillating motor'19985,034,871'DC to DC converter with steady control of output DC voltage by monitoring output DC current'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2003Patents assigned to MATSUSHITA ELECTRIC WORKS LTD (8)· patent assignee history
1991–2003Based in Hikone, JP· patent location history
2001Based in Kadoma, JP· patent location history
2002Based in Shiga, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MATSUSHITA ELECTRIC WORKS LTD81991–2003
Locations
LocationPatentsSpan
Hikone, JP61991–2003
Shiga, JP12002
Kadoma, JP12001