Patents by Inventor Kaoru Aizawa
Kaoru Aizawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6841803Abstract: A display device having: a light-emitting layer 100; a light-reflecting member disposed on a back surface of the light-emitting layer; a polarized light separating unit 500 provided so that light in a predetermined wavelength range corresponding to light emitted from the light-emitting layer is separated into two kinds of polarized light components by reflection and transmission; a polarizer 600; and a retarder 700, the polarized light separating unit 500, the polarizer 600 and the retarder 700 being disposed on a front surface side of the light-emitting layer.Type: GrantFiled: December 18, 2002Date of Patent: January 11, 2005Assignee: Nitto Denko CorporationInventors: Kaoru Aizawa, Masaya Adachi, Shinichi Komura
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Publication number: 20030127656Abstract: A display device having: a light-emitting layer 100; a light-reflecting member disposed on a back surface of the light-emitting layer; a polarized light separating unit 500 provided so that light in a predetermined wavelength range corresponding to light emitted from the light-emitting layer is separated into two kinds of polarized light components by reflection and transmission; a polarizer 600; and a retarder 700, the polarized light separating unit 500, the polarizer. 600 and the retarder 700 being disposed on a front surface side of the light-emitting layer.Type: ApplicationFiled: December 18, 2002Publication date: July 10, 2003Applicant: NITTO DENKO CORPORATIONInventors: Kaoru Aizawa, Masaya Adachi, Shinichi Komura
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Patent number: 5609954Abstract: A strippable pressure-sensitive adhesive and an adhesive material using the same are disclosed, adhesive comprising a highly elastic base polymer whose dynamic modulus of elasticity is in the range of from 250,000 to 10,000,000 dyne/cm.sup.2 at a temperature between ambient temperature and 150.degree. C. with a small rate of change with temperature, having incorporated therein a blowing agent, which adhesive reduces or loses its adhesiveness on expansion or blowing of blowing agent. The adhesive and adhesive material are easily re-applied, is capable of satisfactorily following the shape of an adherent during forming of the adherent, reduces its adhesiveness on heating, and is applicable to various adherents with excellent workability.Type: GrantFiled: March 17, 1995Date of Patent: March 11, 1997Assignee: Nitto Denko CorporationInventors: Kaoru Aizawa, Michirou Kawanishi
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Patent number: 5501897Abstract: A tracking resistant pressure-sensitive adhesive tape comprising an electrically insulating film having a comparative tracking index by an tracking resistant test of the IEC method of at least 400 V, a modulus of elasticity of from 20 to 1,200 kg/mm.sup.2, and a thickness of from 5 to 150 .mu.m, and having formed on one side thereof a pressure-sensitive adhesive layer.Type: GrantFiled: October 31, 1994Date of Patent: March 26, 1996Assignee: Nitto Denko CorporationInventors: Hiroki Ichikawa, Kaoru Aizawa, Toshimitsu Okuno
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Patent number: 5441810Abstract: An adhesive sheet comprising a substrate having formed on one surface or both surfaces thereof a rubber-like elastic layer, a heat-expandable layer, and an adhesive layer in the order from the substrate side.Type: GrantFiled: February 28, 1994Date of Patent: August 15, 1995Assignee: Nitto Denko CorporationInventors: Kaoru Aizawa, Toshiyuki Ohshima, Hiroomi Hanai, Naoki Okochi
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Patent number: 4966281Abstract: An electronic component carrier includes an elongated substrate having a series of electronic component-setting portions spaced from one another at a predetermined interval along the length of the substrate. The substrate has push bar-insertion holes formed therethrough and disposed respectively at the electronic component-setting portions. Adhesive layers are formed respectively on surfaces of the electronic component-setting portions. The electronic components are adapted to be bonded respectively to the electronic component-setting portions through the adhesive layers. A push bar is adapted to be inserted into the push bar-insertion hole so as to be engaged with the electronic component to release the same from the adhesive layer.Type: GrantFiled: August 14, 1989Date of Patent: October 30, 1990Assignee: Nitto Denko CorporationInventors: Michirou Kawanishi, Kaoru Aizawa, Kyoichi Araki, Kiyohiro Kamei, Kunio Nagasaki
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Patent number: 4966282Abstract: An electronic component carrier includes a carrier tape having a series of through holes formed therethrough and spaced from one another at a predetermined interval along the length of the casrrier tape. An adhesive tape having an adhesive layer is bonded to one side of the carrier tape by the adhesive layer. The adhesive layer partially covers each of the through holes. A plurality of electronic components are received respectively in the series of through holes and are bonded to that portion of the adhesive layer partially covering the through holes, thereby holding the electronic components on the carrier tape. An area of adhesive contact between the adhesive tape and the carrier tape and an area of adhesive contact between the adhesive tape and the electronic component can be isolated from each other at least in the direction of the width of the carrier tape.Type: GrantFiled: August 14, 1989Date of Patent: October 30, 1990Assignee: Nitto Denko CorporationInventors: Michirou Kawanishi, Kaoru Aizawa, Tatsuo Kurono
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Patent number: 4427741Abstract: A polarizing film comprising (a) a polarizer and (b) a film formed on at least one surface of the polarizer from a member selected from the group consisting of thermoplastic polycarbonates, polysulfones, polyethersulfones, polyesters, polyamides and poly(estercarbonate)s' and having a retardation .delta. of about 500 nm or less with the retardation .delta. being calculated by the following equation:.delta.=.DELTA.n.multidot.dwherein .delta. is the value at which the polarizing direction of the incident light is directed 45.degree. to the longitudinal axis direction of the film, .DELTA.n is a birefringence and d is a thickness of the film in m.Type: GrantFiled: July 31, 1981Date of Patent: January 24, 1984Assignee: Nitto Electric Industrial Co., Ltd.Inventors: Kaoru Aizawa, Yozo Oishi, Tatsuya Kubozono