Inventor

Tatsushi Yamamoto

Inventor

Ikoma, JP

Overview

1987–2006

Patent span

Electricity

Primary field (CPC H)

Patents· 24 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 transducer22%

H01JElectric discharge tubes or discharge lamps20%

C23CCoating metallic material15%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1011%

H05HPlasma technique9%

Y10TTechnical subjects covered by former us classification7%

B23KSoldering or unsoldering4%

H01FMagnets4%

B65GTransport or storage devices, e.g. conveyors for loading or tipping, shop conveyor systems or pneumatic tube conveyors2%

C22CAlloys2%

PatentTitleYear

7,128,516'Workpiece transport apparatus'2006 6,893,970'Plasma processing method'2005 6,866,747'Plasma processing apparatus'2005 6,783,628'Plasma processing apparatus'2004 6,776,879'Backing plate used for sputtering apparatus and sputtering method'2004 6,753,496'Plasma processing apparatus'2004 6,726,802'Plasma processing apparatus'2004 6,638,392'Plasma process apparatus'2003 6,620,290'Plasma process apparatus'2003 6,586,055'Method for depositing functionally gradient thin film'2003 6,527,908'Plasma process apparatus'2003 6,446,573'Plasma process device'2002 6,286,454'Plasma process device'2001 5,728,240'Positionally adjustable member and applications therefor'1998 5,691,866'Magnetic head and method of manufacturing the same'1997 5,663,845'Magnetic recording/reproducing apparatus'1997 5,491,594'Magnetic recording/reproducing apparatus'1996 5,325,344'Magneto-optical recording and reproducing device having integrally formed recording and reproducing magnetic heads'1994 5,276,959'Method of manufacturing a magnetic tape head'1994 5,202,862'Magneto-optical recording and reproducing device having integrally formed recording and reproducing magnetic heads'1993 5,145,555'Method of manufacturing a magnetic head'1992 5,020,212'Method of manufacturing a magnetic head'1991 4,735,865'Magnetic head core'1988 4,702,935'Production method of a high magnetic permeability alloy film'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2006Patents assigned to SHARP KK (23)· patent assignee history

1987–2004Based in Nara, JP· patent location history

1991–2006Based in Ikoma, JP· patent location history

2001–2005Patents assigned to TADAHIRO OHMI (2)· patent assignee history

2002–2005Patents assigned to OHMI TADAHIRO (7)· patent assignee history

2004Patents assigned to OHMI TADIHIRO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SHARP KK	23	1987–2006
OHMI TADAHIRO	7	2002–2005
TADAHIRO OHMI	2	2001–2005
OHMI TADIHIRO	1	2004

Locations

Location	Patents	Span
Ikoma, JP	12	1991–2006
Nara, JP	12	1987–2004