Patents by Inventor Yoshiharu Waku
Yoshiharu Waku 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: 8900480Abstract: A ceramic composite material for light conversion, which is a solidified body comprising two or more matrix phases with respective components being two or more oxides selected from the group consisting of metal oxides and complex oxides each produced from two or more metal oxides, wherein at least one of the matrix phases is a phosphor phase containing an activated oxide. The solidified body is preferably obtained by the unidirectional solidification method. The ceramic composite material for light conversion is excellent in brightness, light-mixing property, heat resistance and ultraviolet light resistance.Type: GrantFiled: January 19, 2004Date of Patent: December 2, 2014Assignee: Ube Industries, Ltd.Inventors: Shin-ichi Sakata, Yoshiharu Waku
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Publication number: 20060124951Abstract: A ceramic composite material for light conversion, which is a solidified body comprising two or more matrix phases with respective components being two or more oxides selected from the group consisting of metal oxides and complex oxides each produced from two or more metal oxides, wherein at least one of the matrix phases is a phosphor phase containing an activated oxide. The solidified body is preferably obtained by the unidirectional solidification method. The ceramic composite material for light conversion is excellent in brightness, light-mixing property, heat resistance and ultraviolet light resistance.Type: ApplicationFiled: January 19, 2004Publication date: June 15, 2006Applicant: Ube Industries, Ltd.Inventors: Shin-ichi Sakata, Yoshiharu Waku
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Patent number: 5981415Abstract: A ceramic composite material consisting of two or more crystal phases of different components, each crystal phase having a non-regular shape, said crystal phases having three dimensional continuous structures intertwined with each other, at least one crystal phase thereof being a single crystal. Further, by removing at least one crystal phase from this ceramic composite material, there is provided a porous ceramic material consisting of at least one crystal phase and pores, said crystal phase and pores having non-regular shapes and being three dimensionally continuous and intertwined with each other.Type: GrantFiled: June 30, 1997Date of Patent: November 9, 1999Assignee: UBE Industries, Ltd.Inventors: Yoshiharu Waku, Narihito Nakagawa, Kazutoshi Shimizu, Hideki Ohtsubo, Takumi Wakamoto, Yasuhiko Kohtoku
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Patent number: 5902763Abstract: A novel ceramic composite of a solidified body consisting of at least two crystal phases of oxides selected from metal oxides and complex metal oxides, except for the Al.sub.2 O.sub.3 /Y.sub.3 Al.sub.5 O.sub.12 combination.Type: GrantFiled: January 17, 1996Date of Patent: May 11, 1999Assignee: Ube Industries, Inc.Inventors: Yoshiharu Waku, Narihito Nakagawa, Hideki Ohtsubo, Takumi Wakamoto, Kazutoshi Shimizu, Yasuhiko Kohtoku
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Patent number: 5569547Abstract: A ceramic composite material consisting of single crystal .alpha.-Al.sub.2 O.sub.3 and single crystal Y.sub.3 Al.sub.5 O.sub.12 is provided. This composite material has high mechanical strength and creep behavior particularly at high temperatures.Type: GrantFiled: October 4, 1994Date of Patent: October 29, 1996Assignee: Ube Industries, Ltd.Inventors: Yoshiharu Waku, Hideki Ohtsubo, Yasuhiko Kohtoku
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Patent number: 5484752Abstract: A novel ceramic composite material consisting of single crystal .alpha.-Al.sub.2 O.sub.3 and polycrystal Y.sub.3 Al.sub.5 O.sub.12 and a ceramic composite material consisting of polycrystal .alpha.-Al.sub.2 O.sub.3 and polycrystal Y.sub.3 Al.sub.5 O.sub.12, each having a high mechanical strength and creep behavior particularly at high temperature are provided.Type: GrantFiled: November 8, 1994Date of Patent: January 16, 1996Assignee: Ube Industries, Ltd.Inventors: Yoshiharu Waku, Hideki Ohtsubo, Yasuhiko Kohtoku
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Patent number: 5039476Abstract: A method for the production of a metallic powder molding material is disclosed which comprises a step of imparting mechanical energy due to at least one of such physical actions as vibration, pulverization, attrition, rolling, shocks, agitation, and mixing a metallic particles in a vessel whose interior is held under vacuumized atmosphere or an atmosphere of inert gas thereby enabling the metallic particles to contact each other and acquire improvement in surface quality and a step of hot molding the metallic particles thereby producing a molding material.Type: GrantFiled: July 19, 1990Date of Patent: August 13, 1991Assignee: Ube Industries, Ltd.Inventors: Mitsuru Adachi, Akio Okamoto, Hideki Iwai, Yoshiharu Waku
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Patent number: 4980242Abstract: A fiber-reinforced metal composite (aluminum-matrix composite) consisting essentially of reinforcing fibers and an aluminum alloy containing 6 to 11 wt. % of nickel of a metal matrix.Type: GrantFiled: March 31, 1989Date of Patent: December 25, 1990Assignee: Ube Industries, Ltd.Inventors: Tadashi Yamamoto, Michiyuki Suzuki, Yoshiharu Waku, Masahiro Tokuse
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Patent number: 4963439Abstract: A fiber-reinforced metal composite consisting essentially of continuous reinforcing fibers disposed in an aluminum alloy matrix containing about 0.005 wt % of cobalt.Type: GrantFiled: April 17, 1989Date of Patent: October 16, 1990Assignee: Ube Industries, Ltd.Inventors: Tadashi Yamamoto, Michiyuki Suzuki, Yoshiharu Waku, Masahiro Tokuse
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Patent number: 4879074Abstract: A method of coating on a melt contact surface such as that of an injection sleeve for casting, a plunger end face or a mold cavity comprises a step of charging the soot and the melt contact surface with opposite electrical polarities to thereby cause an electrodeposition of the charged soot on the melt contact surface. A preferred apparatus for the soot coating comprises means for producing an air stream surrounding a combustion gas stream including the soot and forming an air curtain for preventing the sprayed soot from scattering.Type: GrantFiled: November 20, 1987Date of Patent: November 7, 1989Assignee: Ube Industries, Ltd.Inventors: Yoshiharu Waku, Hideho Yoshioka, Hiroyoshi Oba, Kiyoshi Fujino
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Patent number: 4860542Abstract: In a method for transmitting force from one piston to another piston, a superplastic alloy is used between the pistons as a pressure transmitting medium. An apparatus adopting the method serves as a force multiplication apparatus.Type: GrantFiled: September 4, 1987Date of Patent: August 29, 1989Assignee: UBE Industries, Ltd.Inventors: Haruaki Hatayama, Hideo Takei, Takuji Okabe, Yoshiharu Waku, Toyoaki Ueno
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Patent number: 4770935Abstract: An inorganic fibrous material for reinforcing composite materials, said fibrous material composed of a central layer and a surface layer, whereinthe surface layer is formed of an inorganic material composed of(i) an amorphous material consisting substantially of Si, M, C and O, wherein M is Ti or Zr, or(ii) an aggregate consisting substantially of ultrafine crystalline particles of beta-SiC, MC, a solid solution of beta-SiC and MC, and MC.sub.1-x having a particle diameter of not more than 500 .ANG. wherein M is as defined above and x is a number represented by 0<x<1, and optionally containing amorphous SiO.sub.2 and MO.sub.2, or(iii) a mixture of the amorphous material (i) and the aggregate (2), andthe central layer is formed of an inorganic material other than said inorganic material; and a process for production thereof.Type: GrantFiled: July 31, 1987Date of Patent: September 13, 1988Assignee: Ube Industries, Ltd.Inventors: Takemi Yamamura, Toshihiro Ishikawa, Masaki Shibuya, Yoshiharu Waku
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Patent number: 4729730Abstract: A pressure transmitting apparatus for hot - press sintering comprises a container 21 with a lid 22, a piston 23, a superplastic alloy medium 24a and 24b and heaters 25a, 25b, and 25c. A force is applied to generate an isostatic compression pressure on the powder body.Type: GrantFiled: January 6, 1986Date of Patent: March 8, 1988Assignee: Ube Industries Ltd.Inventors: Haruaki Hatayama, Hideo Takei, Takuji Okabe, Yoshiharu Waku, Toyoaki Ueno
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Patent number: 4618529Abstract: An inorganic fiber-reinforced ceramic composite material comprising a matrix of a ceramic and inorganic fibers as a reinforcing material, characterized in that(a) the inorganic fibers are specified inorganic fibers containing silicon, either titanium or zirconium, carbon and oxygen,(b) the ceramic is at least one material selected from the group consisting of carbides, nitrides, oxides, glass ceramics, graphite and specified inorganic materials containing silicon, either titanium or zirconium, carbon and oxygen,(c) the inorganic fibers have an initial reaction degradation speed of not more than 0.35 kg/mm.sup.2.sec.sup.Type: GrantFiled: April 19, 1985Date of Patent: October 21, 1986Assignee: UBE Industries, Ltd.Inventors: Takemi Yamamura, Masahiro Tokuse, Yoshiharu Waku
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Patent number: 4614690Abstract: An inorganic fiber-reinforced metallic composite material comprising a matrix of a metal or its alloy and inorganic fibers as a reinforcing material, characterized in that(a) the inorganic fibers are inorganic fibers containing silicon, either titanium or zirconium, carbon and oxygen and being composed of(i) an amorphous material consisting substantially of Si, M, C and O, or(ii) an aggregate consisting substantially of ultrafine crystalline particles with a particle diameter of not more than 500 .ANG. of .beta.-SiC, MC, a solid solution of .beta.-SiC and MC and MC.sub.1-x, and amorphous SiO.sub.2 and MO.sub.2, provided that in the above formulae, M represents titanium or zirconium, and x is a number represented by 0<x<1, or(iii) a mixture of the amorphous material (i) and the aggregate (ii),(b) the inorganic fibers have an initial degradation speed of not more than about 0.3 kg/mm.sup.2.sec.sup.Type: GrantFiled: April 16, 1985Date of Patent: September 30, 1986Assignee: UBE Industries, Ltd.Inventors: Takemi Yamamura, Masahiro Tokuse, Yoshiharu Waku