Patents by Inventor Tetsuya Suganuma
Tetsuya Suganuma 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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Publication number: 20240111166Abstract: A mirror device includes a mirror including a main body portion having a reflection surface that reflects display light, and a rotating shaft protruding from a first side wall of the main body portion, and a driving member that includes a motor including an output shaft arranged parallel to the rotating shaft, and neighboring the rotating shaft in a direction orthogonal to a rotation axis line of the rotating shaft, a first gear portion coupled to the output shaft, and a second gear portion engaged with the first gear portion, and coupled to the rotating shaft, and rotates the mirror by transmitting rotation of the output shaft of the motor to the rotating shaft via the first gear portion and the second gear portion.Type: ApplicationFiled: September 15, 2023Publication date: April 4, 2024Inventors: Yuki Miyoshi, Yasuhiro Katsumata, Akira Yamanaka, Naoto Tsubakihara, Hiroshi Sano, Tetsuya Suganuma, Masaaki Nakamura
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Publication number: 20240111128Abstract: A vehicle display device includes a housing including an opening, an image display device that outputs display light of an image, and a mirror that includes a main body including a reflective surface that reflects the display light toward the opening and is rotatable around a rotation axis. The mirror includes a first and a second ribs that extend along a first direction, and face each other in a second direction. The first rib is formed as a rib closest to a side of the upper end on the back surface, the second rib is formed as a rib closest to a side of the lower end on the back surface, and a central region between the first and the second ribs on the back surface is formed as a flat curved surface, at least a part of which extends from the first rib to the second rib.Type: ApplicationFiled: September 22, 2023Publication date: April 4, 2024Inventors: Yuki Miyoshi, Yasuhiro Katsumata, Akira Yamanaka, Tetsuya Suganuma, Hiroshi Sano
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Publication number: 20090291322Abstract: A joined body has a joint, which includes a first plate-shaped workpiece made of a first metal, and a second plate-shaped workpiece made of a second metal. The first plate-shaped workpiece, and the second plate-shaped workpiece are overlapped each other partially at least. The joint is made by means of friction stir joining by superimposing a rod-shaped body made of a third metal onto the overlapped first plate-shaped workpiece and second plate-shaped workpiece and then rotating it while pressing it onto the first plate-shaped workpiece. The joint further includes a coalesced section made of the first metal that coalesces on a surface of the second plate-shaped workpiece, a built-up section made of the third metal, and a composite section made of a mixture of the first metal and the third metal that integrates the coalesced section with the built-up section.Type: ApplicationFiled: May 18, 2009Publication date: November 26, 2009Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Goro Watanabe, Tetsuya Suganuma
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Patent number: 6358628Abstract: A slide member is made of an aluminum alloy and compositely reinforced at its sliding surface by a reinforcing material. The reinforcing material is a mixture of alumina short fibers consisting of not less than 80 wt. % alumina and the remainder silica and having 5-60 wt. % alpha alumina content, and non-spherical mullite particles consisting of 40-86 wt. % alumina and the remainder silica and having 3-60 microns mean diameter. The volumetric percentages of the alumina short fibers and the mullite particles are 2-12% and 5-25%, respectively, on the basis of the volume of the reinforced portion.Type: GrantFiled: March 31, 1994Date of Patent: March 19, 2002Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yoshiaki Kajikawa, Shinji Kato, Tetsuya Suganuma, Kaneo Hamajima
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Patent number: 6299706Abstract: A high-strength aluminum alloy having good porthole extrudability is provided. It has a Vickers hardness Hv of not less than 40 as measured in a homogenized state created by heat treatment before extrusion and a Vickers hardness Hv of not less than 20 imparted by plastic working after the heat treatment.Type: GrantFiled: November 24, 1997Date of Patent: October 9, 2001Assignees: Toyota Jidosha Kabushiki Kaisha, Nippon Light Metal, Co., Ltd.Inventors: Yoshiharu Miyake, Yoshihisa Serizawa, Yukio Okochi, Tetsuya Suganuma, Hajime Kamio, Takayuki Tsuchida, Hiroshi Nagashima
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Patent number: 6056835Abstract: The present invention relates to a process for producing a superplastic aluminum alloy capable of being used for plastic working such as extrusion, forging and rolling. An object of the present invention is to provide an ingot-made high speed superplastic aluminum alloy in which superplasticity is developed at a strain rate higher than that of conventional static recrystallization type superplastic aluminum alloys, and a process for producing the same. The superplastic aluminum alloy of the invention has structure which is obtained by adding to a basic alloy containing from at least 4.0 to 15% by weight of Mg and from 0.1 to 1.0% by weight of one or more elements selected from the group consisting of Mm, Zr, V, W, Ti, Ni, Nb, Ca, Co, Mo and Ta, and further selective elements of Sc, Cu. Li, Sn, In and Cd, which contains from 0.1 to 4.0% by volume fraction of spheroidal precipitates of intermetallic compounds having a particle size from 10 to 200 nm, and which has a mean grain size from 0.1 to 10 .mu.m.Type: GrantFiled: January 25, 1994Date of Patent: May 2, 2000Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yoshiharu Miyake, Tetsuya Suganuma
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Patent number: 5573608Abstract: The present invention relates to a process for producing a superplastic aluminum alloy capable of being used for plastic working such as extrusion, forging and rolling. An object of the present invention is to provide an ingot-made high speed superplastic aluminum alloy in which superplasticity is developed at a strain rate higher than that of conventional static recrystallization type superplastic aluminum alloys, and a process for producing the same. The superplastic aluminum alloy of the invention has structure which is obtained by adding to a basic alloy containing from at least 4.0 to 15% by weight of Mg and from 0.1 to 1.0% by weight of one or more elements selected from the group consisting of Mm, Zr, V, W, Ti, Ni, Nb, Ca, Co, Mo and Ta, and further selective elements of Sc, Cu, Li, Sn, In and Cd, which contains from 0.1 to 4.0% by volume fraction of spheroidal precipitates of intermetallic compounds having a particle size from 10 to 200 nm, and which has a mean grain size from 0.1 to 10 .mu.m.Type: GrantFiled: May 25, 1995Date of Patent: November 12, 1996Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yoshiharu Miyake, Tetsuya Suganuma
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Patent number: 5479873Abstract: Aluminium borate whiskers by which a composite material having a higher strength than ever is available by definitely suppressing a generation of spinel along the surface of the whiskers are prepared by heating aluminium borate whiskers bearing a r-alumina surface layer in an atmosphere of ammonia gas or ammonia gas and a hydrocarbon gas such that a layer of a nitro-oxide and oxide of aluminium is generated along the surface of the whiskers.Type: GrantFiled: February 14, 1995Date of Patent: January 2, 1996Assignees: Toyota Jidosha Kabushiki Kaisha, Toshiba Ceramics Co., Ltd.Inventors: Yoshitomo Shintani, Tetsuya Suganuma, Shuitsu Matsuo, Hajime Saito, Hidenori Yamaoka, Nobuhisa Kurono, Hiroaki Kotaka
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Patent number: 5441697Abstract: Very fine TiC whiskers having a mean diameter smaller than 1 micron are generated by pellets including Ti powder and graphite powder being added to a molten mass of pure Al or an Al alloy, or by a graphite powder being added to a molten mass of an Al alloy containing Ti, with argon gas being blown into the molten mass so as thereby to generate TiC whiskers in void spaces formed in the molten mass by bubbles of the gas. When the molten mass with the TiC whiskers thus formed therein is compressed, the interstices of the TiC whiskers generated in the void spaces are filled with the molten metal so as thereby to form colonial composite material portions dispersed in the molten mass, thus providing a metallic composite material reinforced by very fine TiC whiskers. The density of the colonial composite material portions can be increased by applying a filtering process to the molten mass.Type: GrantFiled: August 5, 1993Date of Patent: August 15, 1995Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tetsuya Nukami, Tetsuya Suganuma
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Patent number: 5431751Abstract: A high strength aluminum alloy is expressed by a general formula, Al.sub.a X.sub.b Mm.sub.c, in which "X" stands for at least one element selected from the group consisting of Ti, V, Cr, Mn, Fe, Co, Ni, Cu and Zr, "Mm" stands for a misch metal, a content "a" of aluminum falls in a range of from 95.2 to 97.5 atomic %, and a content "b" of "X" and a content "c" of the "Mm" fall in a hatched area enclosed by points "A," "B," "C" and "D" of accompanying FIG. 1 on atomic % basis, and whose metallic phase includes microcrystalline phases or mixed phases containing amorphous phases in a volume content of less than 50% and the balance of microcrystalline phases. As a result, the amorphous phases or the microcrystalline phases are dispersed uniformly in its base microcrystalline phases appropriately, and at the same time the thus generating base microcrystalline phases are reinforced by forming solid solutions including the "Mm" and the transition metal element "X" as well.Type: GrantFiled: February 5, 1993Date of Patent: July 11, 1995Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yukio Okochi, Kazuaki Sato, Tetsuya Suganuma, Akira Kato, Tsuyoshi Masumoto, Akihisa Inoue
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Patent number: 5397533Abstract: A TiAl intermetallic compound source and a boride which is less stable than TiB.sub.2 are mixed and melted, followed by solidification to form a TiB.sub.2 -dispersed TiAl-based composite material in which the TiB.sub.2 is contained in an amount of 0.3 to 10% by volume. In this process, the dispersed TiB.sub.2 particles become very fine, so that the hardness as well as the elongation and bending strength of the TiAl material are improved by the finely dispersed TiB.sub.2 particles.Type: GrantFiled: July 2, 1993Date of Patent: March 14, 1995Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takashi Morikawa, Hiroyuki Shamoto, Tetsuya Suganuma
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Patent number: 5336291Abstract: In order to produce easily and at low cost a metallic composite material incorporating metal carbide particles dispersed therein such that fine TiC particles and/or ZrC particles are uniformly dispersed in a matrix of Al or Al alloy, first, a pellet (16) is formed from Ti powder and/or Zr powder (10), graphite powder (12) and Al or Al alloy powder (14), then the pellet is infiltrated with molten Al or Al alloy, and thereafter the pellet is heated up to 1000.degree.-1800.degree. C. in an inactive atmosphere, so that TiC particles and/or ZrC particles are generated in the pellet. Then the pellet is dissolved in a molten bath of Al or Al alloy.Type: GrantFiled: July 1, 1993Date of Patent: August 9, 1994Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tetsuya Nukami, Tetsuya Suganuma
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Patent number: 5236032Abstract: A metal matrix composite material having uniformly dispersed intermetallic compounds and no micropores is manufactured by forming a porous preform including 60% to 80% by volume fine fragments essentially made of aluminum, 1% to 10% by volume fine fragments essentially made of nickel, copper or both, and 1% to 10% by volume fine fragments essentially made of titanium so that these fine fragments occupy in total 62% to 95% by volume of said preform, and at least a part of the preform is contacted with a melt of a matrix metal selected from aluminum, aluminum alloy, magnesium and magnesium alloy, so that the porous preform is infiltrated with the melt under no substantial application of pressure to the melt.Type: GrantFiled: December 6, 1991Date of Patent: August 17, 1993Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tetsuya Nukami, Tetsuya Suganuma, Atsuo Tanaka, Jun Ohkijima, Yoshiaki Kajikawa, Masahiro Kubo
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Patent number: 4734968Abstract: A valve-seat insert for internal combustion engines comprises a double-layered, sintered alloy composed of a valve-seat layer on which a valve is seated, and a base layer integrated with the valve-seat layer and adapted to be seated in a cylinder head of an engine. The valve-seat layer is composed of a sintered alloy of a high heat resistance and a high wear resistance having a composition comprising, by weight, 4 to 8% Co, 0.6 to 1.5% Cr, 4 to 8% Mo, 1 to 3% Ni, 0.3 to 1.5% C, 0.2 to 0.6% Ca, and the balance of Fe and inevitable impurities, the additives, Co, Cr and Mo being present mainly in a form of a Co-Cr-Mo hard alloy and a hard Fe-Mo alloy dispersed in the Fe matrix. The base layer is composed of a sintered alloy of a higher heat resistance and a higher creep resistance than those of the valve-seat layer and having a composition comprising, by weight, 11 to 15% Cr, 0.4 to 2.0% Mo, 0.05 to 0.3% C, and the balance of Fe and inevitable impurities.Type: GrantFiled: November 21, 1986Date of Patent: April 5, 1988Assignees: Toyota Motor Corporation, Sumitomo Electric Industries, Ltd.Inventors: Nobuhito Kuroishi, Naoki Motooka, Tetsuya Suganuma, Akira Manabe
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Patent number: 4671491Abstract: A valve-seat insert for internal combustion engines comprises a double-layered, sintered alloy composed of a valve-seat layer on which a valve is seated, and a base layer integrated with the valve-seat layer and adapted to be seated in a cylinder head of an engine. The valve-seat layer is composed of a sintered alloy of a high heat resistance and a high wear resistance having a composition comprising, by weight, 4 to 8% Co, 0.6 to 1.6% Cr, 4 to 8% Mo, 1 to 3% Ni, 0.3 to 1.5% C, 0.2 to 0.6% Ca, and the balance of Fe and inevitable impurities, the additives, Co, Cr and Mo being present mainly in a form of a Co-Cr-Mo hard alloy and a hard Fe-Mo alloy dispersed in the Fe matrix. The base layer is composed of a sintered alloy of a higher heat resistance and a higher creep resistance than those of the valve-seat layer and having a composition comprising, by weight, 11 to 15% Cr, 0.4 to 2.0% Mo, 0.05 to 0.3% C, and the balance of Fe and inevitable impurities.Type: GrantFiled: June 12, 1985Date of Patent: June 9, 1987Assignees: Sumitomo Electric Industries, Ltd., Toyota Motor CorporationInventors: Nobuhito Kuroishi, Naoki Motooka, Tetsuya Suganuma, Akira Manabe
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Patent number: 4524046Abstract: A method for manufacturing a firm and rigid cam-cam shaft assembly, which comprises the steps: (a) molding a component having through-hole therein from a material of an alloy to be sintered, said material allowing the first ratio of the contraction of the inner diameter of the component at joining portion when the component is singly sintered to the inner diameter thereof before sintering to be more than 2%; (b) presintering said component; (c) assembling said component onto a metal shaft such that said metal shaft may be inserted into said through-hole; and (d) sintering said component assembled onto the metal shaft, whereby the joining of the component to the metal shaft is carried out in such a manner that the second ratio of the difference between the outer diameter of the metal shaft and the inner diameter of the contracted component after sintering to the outer diameter of the metal shaft is more than 2%.Type: GrantFiled: April 16, 1984Date of Patent: June 18, 1985Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tetsuya Suganuma, Koji Kazuoka, Shuichi Fujita, Yoshitaka Takahashi, Katsuhiko Ueda, Hitoshi Nakamura
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Patent number: 4518563Abstract: A method for manufacturing a slide member by molding an alloy powder composed of, by weight, from 2.5 to 7.5% of Cr, from 0.1 to 3.0% of Mn, from 0.2 to 0.8% of P, from 1.0 to 5.0% of Cu, from 0.5 to 2.0% of Si, from 0 to 3% of Mo, from 1.5 to 3.5% of C, and the balance being Fe with less than 2.0% of impurities into a compressed powder mass under a molding product pressure of 5 to 7 ton/cm.sup.2 ; sintering the compressed powder mass at a temperature of 1020.degree. to 1180.degree. C. to produce a sintered alloy mass; treating the sintered alloy mass for 0.5 to 3 hours by soaking the sintered alloy mass at a temperature from 450.degree. to 550.degree. C. under a reduced pressure of 0.1 to 0.8 atm. while exposing the sintered alloy mass to a gas, the gas having a main component selected from the group consisting of a non-oxidizing type gas and an endothermic type gas, and containing 20 to 40 vol.Type: GrantFiled: May 17, 1984Date of Patent: May 21, 1985Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tetsuya Suganuma, Koji Kazuoka
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Patent number: 4491477Abstract: An anti-wear sintered alloy comprising from 2.5 to 25.0% of Cr, from 0.10 to 3.0% of Mn, from 0.1 to 0.8% of P, from 1.0 to 5.0% of Cu, from 0.5 to 2.0% of Si, from 0 to 3% of Mo, 1.5 to 3.5% of C, one selected from the group consisting of from 0.5 to 3.0% of S and from 1.0 to 5.0% of Pb, and the balance being Fe with less than 2% of impurities, wherein S or Pb is distributed uniformly in the sintered alloy in form of sulfide or lead particle of less than 100 .mu.m and a manufacturing process thereof.Type: GrantFiled: August 24, 1982Date of Patent: January 1, 1985Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tetsuya Suganuma, Koji Kazuoka, Shuichi Fujita, Yoshitaka Takahashi, Takeshi Okujo
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Patent number: 4388114Abstract: An anti-wear sintered alloy comprising chrome 2.5-7.5 weight %, manganese 0.10-3.0 weight %, phosphorus 0.2-0.8 weight %, copper 1.0-5.0 weight %, silicon 0.5-2.0 weight %, molybdenum 0-3 weight %, and carbon 1.5-3.5 weight %, the balance being Fe and less than 2% impurities, and a process of manufacturing therefore.Type: GrantFiled: December 5, 1980Date of Patent: June 14, 1983Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Tetsuya Suganuma, Yoshio Fuwa, Shuichi Fujita, Takahashij Yoshitaka
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Patent number: 4268309Abstract: Wear-resisting iron base sintered alloy obtained by sintering a metal powder composed of, by weight, 15-25% chromium, 0-3% molybdenum, 1-5% copper, 0.3-0.8% phosphorus and 2.0-4.0% carbon, with the balance iron and less than 2% impurities, to a density of more than 7.3 g/cm.sup.3.Type: GrantFiled: November 14, 1978Date of Patent: May 19, 1981Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Yoichi Serino, Tetsuya Suganuma, Yoshitaka Takahashi