Patents by Inventor Hideyuki Okinaka
Hideyuki Okinaka 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).
-
Patent number: 5093757Abstract: The invention relates to a dielectric ceramic composition that can be baked in a short time in the atmosphere, neutral atmosphere or reducing atmosphere at baking temperature of 800.degree. to 1000.degree. C. In the ceramic components expressed by PbTi.sub.X (Mg.sub.1/2 Nb.sub.2/3).sub.Y (Ni.sub.1/2 W.sub.1/2)ZO.sub.3 (where X+Y+Z=1), PbO is added by 1.0 to 25.0 mol % and NiO by 1.0 to 15.0 mol % as subsidiary components, to the temporarily baked powder of the main component dielectric ceramic composition composed in the pentagonal region having the vertices at compositions A, B, C, D, E expressed by numerical values in the following square brackets, in the system of trigonometric coordinates having the vertices at PbTiO.sub.3, Pb(Mg.sub.1/3 Nb.sub.2/3)O.sub.3 and Pb(Ni.sub.1/2 W.sub.1/2)O.sub.3,A is x=2.5, y=9.5, z=2.5;B is x=12.5, y=85.0, z=2.5,C is x=60.0, y=10.0, z=30.0,D is x=40.0, y=10.0, z=50.0,E is x=2.5, y=90.0, z=7.Type: GrantFiled: February 5, 1991Date of Patent: March 3, 1992Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kouji Kawakita, Suzushi Kimura, Hideyuki Okinaka, Youichiro Yokotani, Mariko Ishikawa
-
Patent number: 4863683Abstract: A manufacturing method for a multilayered ceramic body using Cu, Ni, Co or Fe as a conductor material, and a conductor forming paste of particular composition of CuO, NiO, CoO or Fe.sub.2 O.sub.3 as the main component, the paste being applied to the multilayered body. The manufacturing method comprises: a process of forming the multilayered body with conductor paste of CuO, NiO, CoO or Fe.sub.2 O.sub.3 as the main component and insulating paste formed of glass and/or ceramic, so that a binder is removed from the laminate by heat treatment in an oxidizing atmosphere; a process of heat treatment for reducing the oxide; and a sintering process for sintering the laminate in a nitrogen atmosphere.Type: GrantFiled: June 24, 1987Date of Patent: September 5, 1989Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Seiichi Nakatani, Satoru Yuhaku, Hideyuki Okinaka, Toru Ishida, Osamu Makino, Tatsuro Kikuchi
-
Patent number: 4811148Abstract: An iron-aluminum-silicon (Fe-Al-Si) series magnetic alloy magnetic head is described. The magnetic head is filled between front gap forming surfaces (the front gap facing a magnetic tape) of a pair of Fe-Al-Si core pieces with non-magnetic ceramic films formed on the respective front gap forming surfaces and a glass film formed therebetween, and between rear gap forming surfaces for junction with an Ag-Cu-In series alloy film.Type: GrantFiled: March 10, 1987Date of Patent: March 7, 1989Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masaki Aoki, Masayuki Sakai, Hideo Torii, Hideyuki Okinaka, Hozumi Hirota
-
Patent number: 4801932Abstract: A display apparatus using a light-transmitting ceramic having an electrooptic effect. A voltage application head has at least a pair of electrodes which contact the light-transmitting ceramic. The head is driven by a head driver so as to scan across a surface of the light-transmitting ceramic. Electrodes may be formed also on the surface of the light-transmitting ceramic. A bright and dark pattern caused by double refraction in the light-transmitting ceramic is seen through a polarizing plate.Type: GrantFiled: June 3, 1986Date of Patent: January 31, 1989Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoneharu Takubo, Yasutaka Horibe, Nobue Yamanishi, Eiji Fujii, Hideyuki Okinaka
-
Patent number: 4733950Abstract: A display apparatus using a light-transmitting ceramic plate having an electrooptic effect known as Kerr effect is disclosed. The ceramic plate is placed between two parallel polarizers having a same axis of polarization. A transparent flexible sheet faces a surface of the ceramic plate. The flexible sheet has a plurality of transparent striped electrodes on a surface facing the surface of the ceramic plate. The striped electrodes are locally brought into contact with the surface of the ceramic plate by a pressure applied by a pressure application head which is either always or intermittently pressed onto the flexible sheet. The pressure application head is movable in a direction parallel to the striped electrodes for scanning.Type: GrantFiled: December 4, 1986Date of Patent: March 29, 1988Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoneharu Takubo, Yasutaka Horibe, Nobue Yamanishi, Eiji Fujii, Hideyuki Okinaka
-
Patent number: 4722597Abstract: An electrooptic shutter array element has a light transmissive substrate, a pair of electrodes having a plurality of opposed terminal portions formed on the substrate, a light shading mask provided with a plurality of windows corresponding to the opposed pairs of terminal portions of the electrodes, and a pair of polarizing plates provided in front and behind the substrate. The terminal portions and windows are properly arranged to distribute an electric field within each of the window areas so that the transmittance of the shutter array element is substantially constant regardless of a temperature change.Type: GrantFiled: May 8, 1987Date of Patent: February 2, 1988Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoneharu Takubo, Yasutaka Horibe, Nobue Yamanishi, Hideyuki Okinaka
-
Patent number: 4721518Abstract: A mold for press-molding glass elements comprising a base member made of a super hard alloy or a cermet; at least one intermediate layer made of a nitride, a carbide, an oxide or a metal, provided on the base member; and a noble metal layer provided on the intermediate layer for forming a mold surface. An active metal contained in the base member is prevented from diffusing to the mold surface by the presence of the intermediate layer.Type: GrantFiled: December 10, 1985Date of Patent: January 26, 1988Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hideto Monji, Masaki Aoki, Hideo Torii, Hideyuki Okinaka
-
Patent number: 4717584Abstract: An organic metal compound containing elements constituting a magnetic material and an oxygen gas are introduced into plasmas at a low pressure and a thin film of magnetic oxide is prepared on an organic film or aluminum at low temperature.Type: GrantFiled: February 5, 1986Date of Patent: January 5, 1988Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masaki Aoki, Hideo Torii, Hideyuki Okinaka, Masayuki Sakai
-
Patent number: 4714570Abstract: A manufacturing method for a multilayered ceramic body using Cu, Ni, Co or Fe as a conductor material, and a conductor forming paste of a particular composition of CuO, NiO, CoO or Fe.sub.2 O.sub.3 as the main component, the paste being applied to the multilayered body. The manufacturing method comprises: a process of forming the multilayered body with conductor paste of CuO, NiO, CoO or Fe.sub.2 O.sub.3 as the main component and insulating paste formed of glass and/or ceramic, so that a binder is removed from the laminate by heat treatment in an oxidizing atmosphere; a process of heat treatment for reducing the oxide; and a sintering process for sintering the laminate in a nitrogen atmosphere.Type: GrantFiled: July 17, 1985Date of Patent: December 22, 1987Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Seiichi Nakatani, Satoru Yuhaku, Hideyuki Okinaka, Toru Ishida, Osamu Makino, Tatsuro Kikuchi
-
Patent number: 4685948Abstract: A glass optical element is directly press-molded by a method using a noble mold. The mold comprises a base material and a press surface film formed on the base material. The press surface film is an Ir film, or a Ru film, or an alloy film comprising Ir and at least a member selected from the group consisting of Pt, Re, Os, Rh and Ru, or an alloy film comprising Ru and at least a member selected from the group consisting of Pt, Re, Os and Rh.Type: GrantFiled: January 31, 1986Date of Patent: August 11, 1987Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kiyoshi Kuribayashi, Masayuki Sakai, Hideto Monji, Masaki Aoki, Hideyuki Okinaka, Hideo Torii
-
Patent number: 4629487Abstract: Disclosed is a molding method for producing an optical glass element which comprises the steps of preparing a mold coated with a thin film of a noble metal alloy, and molding optical glass into the form of an optical glass element by using the mold while applying heat and pressure to the optical glass. Further disclosed is such a mold that is coated with a thin film of a noble metal alloy, for producing an optical glass element.Type: GrantFiled: May 16, 1985Date of Patent: December 16, 1986Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hideto Monji, Masaki Aoki, Hideo Torii, Hideyuki Okinaka
-
Patent number: 4606750Abstract: A mold used for manufacturing optical glass parts by the direct press molding of lumps of raw optical glass. The pressing surface of the mold is made of a material comprising .alpha. type SiC or amorphous SiC or a mixture of both. The pressing surface may be a coated film on a base body of hard alloy or high density carbon.Type: GrantFiled: December 7, 1984Date of Patent: August 19, 1986Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hideo Torii, Masaki Aoki, Hideyuki Okinaka, Satoru Yuhaku, Shoji Nakamura
-
Patent number: 4466880Abstract: An oxygen sensor whose sensing element is covered by a cylindrical porous filter cap, prepared by sintering metallic wool such as nickel-chromium alloy wool for protecting the sensing element from damage by mechanical shock and thermal shock due to a high flow pressure of a high temperature gas and for easy determination of sensing response time.Type: GrantFiled: September 17, 1982Date of Patent: August 21, 1984Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hideo Torii, Hideyuki Okinaka, Toshio Ozawa
-
Patent number: 4045178Abstract: This invention provides a reducing gas sensor which has a gas sensitive element composed of, as a main constituent, .gamma.-ferric oxide (.gamma.-Fe.sub.2 O.sub.3) and, as an additive, at least one compound in the group of WO.sub.3, MoO.sub.3, SiO.sub.2, GeO.sub.2, Li.sub.2 O, Na.sub.2 O, K.sub.2 O, CaO, SrO, BaO, Eu.sub.2 O.sub.3, La.sub.2 O.sub.3, CeO.sub.2, Al.sub.2 O.sub.3, Ga.sub.2 O.sub.3, In.sub.2 O.sub.3, SnO.sub.2, TiO.sub.2, MgO, NiO, ZnO, Mn.sub.2 O.sub.3 and Cr.sub.2 O.sub.3, a pair of electrodes and a heater element. The .gamma.-ferric oxide is in the form of a thin film, a plate or a thin surface layer on a sintered plate of .gamma.-ferric oxide. The gas sensor of the invention is much improved in the stability during use and also it has a high sensitivity.Type: GrantFiled: November 3, 1976Date of Patent: August 30, 1977Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hideyuki Okinaka, Atsushi Iga, Masatake Ayusawa, Masatugu Yamaguchi, Seiichi Nakatani, Toshiaki Yagami