Inventor

Hiroyuki Onda

Inventor

Hoya, JP

Overview

19→

Patents

1982–2020

Patent span

Physics

Primary field (CPC G)

Patents· 19 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 transducer52%

H03MCoding13%

H01JElectric discharge tubes or discharge lamps9%

B29BPreparation or pretreatment of the material to be shaped4%

C08JWorking-up4%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients4%

C08LCompositions of macromolecular compounds4%

H02PControl or regulation of electric motors, electric generators or dynamo-electric converters4%

LOCD14%

PatentTitleYear

10,619,013Composite particulate material and production process for the same, composite-particulate-material slurry, and resinous composition2020 6,992,961'Optical disk apparatus which determines the type of optical disk'2006 6,310,845'Optical disk device'2001 6,081,485'Optical disc accessing apparatus capable of preventing error in the mirror signal'2000 5,881,031'Disk apparatus having improved performance in reaching target position on disk'1999 5,627,811'Constant linear velocity optical disk apparatus having improved circuitry for speed data access'1997 5,481,158'Electron multiplier with improved dynode geometry for reduced crosstalk'1996 5,481,517'Track jump control means for a disk apparatus'1996 5,442,608'Disk apparatus having a power consumption reducing mechanism'1995 5,438,557'Optical disk storage which provides pull-in of focus servo and pull-in of tracking servo'1995 5,336,966'4-layer structure reflection type photocathode and photomultiplier using the same'1994 5,319,626'Method for rewriting defect management areas on optical disk according to ECMA standard'1994 5,311,107'Method and apparatus for stopping DC motor by brake power corresponding to rotation frequency of motor and disk storage unit having such apparatus'1994 5,265,077'Optical disk storage having reduced power consumption during seeking operations'1993 5,247,509'Disk storage which automatically adjusts to optimum recording/reproducing level'1993 4,700,173'Analog to digital conversion method and system with the introduction and later removal of dither'1987 4,686,509'Digital to analog conversion method and system with the introduction and later removal of dither'1987 4,644,324'Digital to analog conversion system with the addition of dither to the digital input'1987 D0266004'Paper sheet counter'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2006Patents assigned to TEAC CORP (15)· patent assignee history

1987–1996Based in Hoya, JP· patent location history

1993–1996Patents assigned to MITSUBISHI ELECTRIC CORP (7)· patent assignee history

1994–1996Patents assigned to HAMAMATSU PHOTONICS KK (2)· patent assignee history

1994–1996Based in Hamamatsu, JP· patent location history

1994–1995Based in Musashino, JP· patent location history

1997–2006Based in Higashikurume, JP· patent location history

2006Patents assigned to MINASE MINORU (1)· patent assignee history

2020Patents assigned to ADMATECHS CO LTD (1)· patent assignee history

2020Based in Miyoshi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TEAC CORP	15	1987–2006
MITSUBISHI ELECTRIC CORP	7	1993–1996
HAMAMATSU PHOTONICS KK	2	1994–1996
ADMATECHS CO LTD	1	2020
MINASE MINORU	1	2006

Locations

Location	Patents	Span
Hoya, JP	7	1987–1996
Higashikurume, JP	5	1997–2006
Hamamatsu, JP	2	1994–1996
Musashino, JP	2	1994–1995
Miyoshi, JP	1	2020