Inventor

Haruo Shiba

Inventor

Komoro, JP

Overview

1976–2003

Patent span

Physics

Primary field (CPC G)

Patents· 141 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 transducer88%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

Y10TTechnical subjects covered by former us classification3%

B29CShaping or joining of plastics1%

B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts1%

B29LIndexing scheme associated with subclass b29c, relating to particular articles1%

B65HHandling thin or filamentary material, e.g. sheets, webs, cables1%

C08JWorking-up1%

PatentTitleYear

6,532,133'Recording medium cartridge with improved welding characteristics'2003 5,966,360'Cleaning disc cartridge'1999 5,873,538'Magnetic tape cassette'1999 5,657,938'Video tape cassette with fixing portions remotely positioned from the front lid'1997 5,626,305'Tape cassette having ribs and window'1997 5,621,597'Disc cartridge'1997 5,524,005'Cartridge for a recording reproducing medium having a shutter configured to reduce damage to the casing'1996 5,498,456'Disc cartridge'1996 5,492,283'Tape casette and reel spring therefor'1996 5,441,216'Tape take-up hub'1995 5,385,235'Casing for housing a cartridge'1995 5,367,421'Cartridge for a recording/reproducing medium having a transparent or semi-transparent cover member'1994 5,347,416'Disc cartridge having improved shutter'1994 5,326,608'Disc cartridge'1994 5,325,256'Cartridge having a write protector integrally formed with the casing'1994 5,303,876'Magnetic tape cassette'1994 5,278,717'Disk cartridge'1994 5,260,931'Disk cartridge with improved transmission shutter mechanism'1993 5,247,416'Disk cartridge with friction-reducing sheet'1993 5,232,093'Tape cassette housing'1993 5,205,507'Hub for tape cassette'1993 5,195,084'Disc cartridge'1993 5,180,118'Magnetic tape cassettes'1993 5,172,288'Magnetic recording medium and a tape guide in a cartridge'1992 5,168,998'Casing for receiving a magnetic tape cassette'1992 5,153,801'Disk cartridge having coupled shutters for closing plural cartridge openings'1992 5,121,278'Disc cartridge having disc supporting arrangement'1992 5,121,277'Disc cartridge with shutter and assembling and mounting mechanism therefor'1992 5,115,365'Magnetic tape cassette having elastic pad element'1992 5,107,386'Magnetic tape cassette'1992 5,091,814'Disk cartridge having discontinuous hub-position determining rib'1992 5,082,197'Tape cassette'1992 5,081,556'Protective casing for a magnetic disk'1992 5,077,625'Cartridge having casing with shutter movable to receive discs therein'1991 5,072,326'Disc cartridge and shutter assembly thereof'1991 5,057,960'Hub for a disk type recording medium'1991 5,044,496'Case'1991 5,034,844'Disc cartridge with bent shutter plate to facilitate mounting of shutter plate on disc casing'1991 5,034,839'Structures for fixedly supporting tape guides in a magnetic tape cassette'1991 5,018,039'Disc cartridge with thick portion surrounding head insertion hole'1991 5,010,435'Hub for a disk type recording medium'1991 5,004,180'Magnetic tape cassette'1991 4,991,048'Disc cartridge casing with shutter slidably fitted therein to uncover a pick-inserting hole'1991 4,991,047'Tape guides and method of manufacturing the same'1991 4,979,065'Disc cartridge having a liner and an elastic member for maintaining the liner in contact with a disc'1990 4,977,475'Lining member for the surface of a casing for a disc cartridge'1990 4,965,690'Tape cassette having outer housing layers of elastomeric material'1990 4,949,210'Tape cassette'1990 4,935,833'Guide members for magnetic tape cassette'1990 4,930,714'Reel for a magnetic tape'1990 4,905,113'Magnetic tape cassette having a slider mounted on the lower casing member'1990 4,899,242'Locking mechanism of magnetic tape cassette'1990 4,892,266'Magnetic tape cassette'1990 4,885,651'Tape cassette with low friction slide member for guiding movement of a lid thereon'1989 4,871,153'Spring for biasing a braking member of a tape cassette'1989 4,864,450'Protective cover for a magnetic tape cassette'1989 4,863,116'Guide member in a cassette for data carrying material'1989 4,863,031'Disc cartridge having peripheral disc support'1989 4,858,849'Tape cassette housing'1989 4,847,717'Handling of a tape cassette'1989 4,845,582'Disc cartridge'1989 4,837,651'Disc cartridge'1989 4,812,936'Cassette having magnetic tape protected from contaminants'1989 4,803,678'Disc cartridge'1989 4,802,046'Casing assembly for a disc cartridge'1989 4,802,047'Disc cartridge'1989 4,799,122'Mounting a disc receiver in a disc cartridge'1989 4,791,515'Protecting a disc cartridge from inadvertent actuation during nonuse'1988 4,787,006'Shutter pin groove for a magnetic disc cartridge'1988 4,785,368'Device for selecting a surface of a disc in a cartridge'1988 4,781,340'Magnetic tape cassette'1988 4,782,418'Disc cartridge'1988 4,782,417'Disc cartridge'1988 4,779,158'Disc cartridge'1988 4,771,351'Device for positioning a spring within a tape cassette and the spring therefore'1988 4,769,730'Magnetic tape cassette with an improved guard panel'1988 4,768,123'Magnetic disk cartridge and producing method therefor'1988 4,757,412'Disk cartridge'1988 4,748,529'Magnetic tape cassette with anti-friction tape guides'1988 4,747,007'Spring means for biasing a tape against a head inserted in a cassette'1988 4,742,418'Tape cassette with means for limiting movement of reel brake'1988 4,739,434'Disk cartridge having a hub including a stepped portion'1988 4,737,875'Device for preventing obstruction by a tape cassette cover'1988 4,734,812'Tape cartridge with erasure-preventing indicator plug'1988 4,733,317'Magnetic tape cassette having a tape passage including ribs'1988 4,727,445'Device for opening/closing a protective cover on a magnetic tape cassette and protecting the cassette interior from contamination'1988 4,720,055'Tape clamp mechanism for reel hub of tape cassette'1988 4,717,980'Tape cassette with low friction slide member for guiding movement of a lid thereon'1988 4,710,839'Magnetic disc cartridge'1987 4,707,757'Pressing spring for a magnetic tape cartridge'1987 4,688,128'Magnetic tape cassette having two layered portions'1987 4,682,258'Video cassette cartridge construction'1987 4,682,259'Magnetic tape cassette with dustproof mechanism'1987 4,679,109'Tape cassette driven rib device'1987 4,677,516'Disk cartridge having elastic pieces'1987 4,663,689'Tape pad for a magnetic tape cassette'1987 4,656,550'Disk cartridge'1987 4,631,619'Magnetic tape cassette having improved reel locking means'1986 4,628,389'Lock member for the lid of a magnetic tape cassette'1986 4,626,948'Magnetic tape cartridge pivot pin and supporting member'1986 4,593,868'Reel spring of magnetic tape cassette'1986 4,593,335'Pressure pad device for a magnetic tape cassette'1986 4,585,187'Magnetic tape cassette'1986 4,558,387'Magnetic tape cassette'1985 4,545,483'Casing for a magnetic tape cassette'1985 4,515,322'Reel for a magnetic tape'1985 4,504,027'Magnetic tape clamping device'1985 4,491,891'Tape guide for a magnetic tape cartridge and method of manufacturing the same'1985 4,466,582'Tape guide for magnetic tape cartridge'1984 4,466,036'Magnetic tape cassette'1984 4,457,474'Magnetic tape cartridge'1984 4,456,192'Magnetic tape clamping device'1984 4,438,860'Magnetic tape cassette'1984 4,422,599'Magnetic tape cassette'1983 4,422,550'Structure of pivotal-shaft receiving hole of thin-walled molding product'1983 4,422,119'Leader tape'1983 4,420,128'Magnetic tape cassette'1983 4,387,823'Magnetic tape cassette'1983 4,386,746'Magnetic tape cassette'1983 4,385,734'Ring with rib for winding magnetic tape'1983 4,382,565'Magnetic tape cassette'1983 4,380,030'Magnetic tape cassette'1983 4,378,066'Case for holding magnetic tape cassette'1983 4,371,286'Tapping boss of magnetic tape cassette'1983 4,304,374'Tape cassette'1981 4,291,800'Tape cassette'1981 4,254,923'Magnetic tape cassette'1981 4,254,917'Reel for tape cassette'1981 4,227,622'Tape cassette'1980 4,212,437'Tape cassette'1980 4,195,797'Tape cassette'1980 4,187,998'Tape cassette'1980 4,181,272'Tape cassette reel'1980 4,180,220'Tape cassette'1979 4,168,043'Tape cassette'1979 4,165,051'Tape reel'1979 4,093,967'Magnetic tape cassette'1978 4,053,935'Tape cassette with flexible aperture closure'1977 4,044,386'Tape cassette with erase inhibit plug'1977 4,023,745'Endless tape cartridge'1977 3,990,733'Hub for magnetic tape'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1986Patents assigned to TDK ELECTRONICS CO LTD (32)· patent assignee history

1976–1992Based in Tokyo, JP· patent location history

1977–1983Patents assigned to SHIBA HARUO (2)· patent assignee history

1978–1987Based in Saku, JP· patent location history

1983Patents assigned to HOTSUKI HIDEKI (1)· patent assignee history

1983Patents assigned to KAWAKAMI YOSHIO (1)· patent assignee history

1983Based in Saku-shi, JP· patent location history

1985–2003Patents assigned to TDK CORP (107)· patent assignee history

1986–2003Based in Komoro, JP· patent location history

1988–1999Based in Nagano, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TDK CORP	107	1985–2003
TDK ELECTRONICS CO LTD	32	1976–1986
SHIBA HARUOself	2	1977–1983
HOTSUKI HIDEKI	1	1983
KAWAKAMI YOSHIO	1	1983

Locations

Location	Patents	Span
Komoro, JP	51	1986–2003
Nagano, JP	40	1988–1999
Tokyo, JP	36	1976–1992
Saku, JP	13	1978–1987
Saku-shi, JP	1	1983