Patents by Inventor Koji Miyata
Koji Miyata 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: 8299676Abstract: A high-output and highly efficient axial gap type rotating machine capable of reducing an eddy current generated in a winding wire and supplying a larger current is provided.Type: GrantFiled: September 10, 2008Date of Patent: October 30, 2012Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Koji Miyata, Minori Miyata, legal representative, Atsushi Miyata, legal representative, Hideki Kobayashi, Naoki Watanabe, Takehisa Minowa
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Publication number: 20120233848Abstract: A method for assembling rotors which is applicable to a large axial gap type permanent magnet rotating machine is provided. A permanent magnet rotating machine comprising: a rotating shaft; at least two rotors comprising a table-like structure and permanent magnets attached thereto, the table-like structures being connected to the rotating shaft and being disposed in an axial direction of the rotating shaft; and a stator comprising a table-like structure and stator coils around which a copper wire is wound, said stator being disposed in a gap formed by the rotors so that the stator being separated from the rotating shaft, is manufactured by the following steps of. assembling the two rotors such that a predetermined gap is formed therebetween; and mounting the magnets on the table-like structures by inserting the magnet from the radially outer side of the table-like structures towards the center of the rotation with the assembled state being maintained.Type: ApplicationFiled: May 25, 2012Publication date: September 20, 2012Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Yuhito DOI, Hideki KOBAYASHI, Takehisa MINOWA, Koji MIYATA, Minori Miyata, Atsushi Miyata
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Patent number: 8269353Abstract: Patterns provided on a surface of a substrate include an adhesion area pattern and one or more non-adhesion area patterns. A chip electrode on a backside of a semiconductor chip is attached to the adhesion area pattern by a conductive adhesive. Consequently, an area of patterns subjected to gold plating that is stable in a steady state is smaller in a substrate of the present invention than in a conventional substrate, resulting in reduction in costs. Further, the chip electrode is attached to the adhesion area pattern by a conductive adhesive in a liquid form. Consequently, a semiconductor device of the present invention allows reducing use of an expensive conductive adhesive compared with a conventional semiconductor device, resulting in reduction in costs.Type: GrantFiled: December 10, 2009Date of Patent: September 18, 2012Assignee: Sharp Kabushiki KaishaInventors: Koji Miyata, Hiroyuki Nakanishi, Masahiro Okita, Kazuaki Tatsumi, Masato Yokobayashi
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Patent number: 8255935Abstract: It is an object of the present invention to provide a slot-in type disk apparatus which can be reduced in thickness by precisely guiding a moving position of a disk when the disk is inserted and discharged. The slot-in type disk apparatus in which a base body 10 and a lid constitute a chassis sheath, a disk-insertion opening 11 into which a disk is directly inserted is formed in a front surface of the chassis sheath, a traverse base 30 is disposed on the side of a front surface of the base body 10, a spindle motor held by the traverse base 30 is disposed at a central portion of the base body 10, the traverse base 30 is provided with a traverse base cover 30A, a discharge lever 100 can move in a portion on the traverse base cover 30A, and a movable-side end of the discharge lever 100 is provided with a guide which holds a disk, and a height of the discharge lever 100 with respect to the traverse base cover 30A is set by contact between the discharge lever 100 and the turntable 31B.Type: GrantFiled: November 13, 2006Date of Patent: August 28, 2012Assignee: Panasonic CorporationInventor: Koji Miyata
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Publication number: 20120161271Abstract: A semiconductor device having a substrate including a photodiode; a resin layer formed on an upper surface of the substrate, the resin layer not covering a light receiving region of the photodiode, the resin layer including at least one groove surrounding the light receiving region; and a molding resin portion formed by mold-sealing the photodiode with the resin layer thereon so as not to cover the light receiving region.Type: ApplicationFiled: February 29, 2012Publication date: June 28, 2012Applicant: SONY CORPORATIONInventors: Shuji Yoneda, Masato Oishi, Tamotsu Shinohara, Shinji Watanabe, Koji Miyata, Seiji Fukae, Kenji Yamauchi, Yoichi Goto, Masakazu Baba
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Publication number: 20120127778Abstract: A memory device includes: a transistor array having transistors; and memory elements provided, one for each of the transistors. The transistor array includes a substrate having diffusion layers on a surface thereof, parallel word lines on the substrate, parallel first bit lines provided in a direction perpendicular to the word lines, bit contact electrodes between the adjacent two word lines and connecting the first bit lines and the diffusion layers, and node contact electrodes at an opposite side to the bit contact electrodes with the two word lines in between and connected to the diffusion layers. The memory elements have lower electrodes connected to the node contact electrodes, memory layers on the lower electrodes and having resistance values reversibly changing by voltage application, and parallel second bit lines extending in the same direction as that of the first bit lines on the memory layers.Type: ApplicationFiled: November 4, 2011Publication date: May 24, 2012Applicant: SONY CORPORATIONInventors: Koji Miyata, Wataru Otsuka
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Publication number: 20120091428Abstract: A manufacturing method of a memory apparatus in which memory devices each having a memory layer whose resistance value reversibly varies by voltage application between bottom and upper electrodes are formed, includes: forming and shaping a bottom electrode material film into a first linear pattern extending in a first direction; forming a memory layer material film and an upper electrode material film in this order on the bottom electrode material film; forming the upper electrodes and the memory layers by shaping the upper electrode material film and the memory layer material film into a second linear pattern extending in a second direction intersecting with the first direction; and forming the bottom electrodes having a quadrangle plane shape at regions where the first linear pattern intersect with the second linear pattern by shaping the bottom electrode material film into the second linear pattern.Type: ApplicationFiled: October 12, 2011Publication date: April 19, 2012Applicant: SONY CORPORATIONInventor: Koji Miyata
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Patent number: 8153467Abstract: A method for manufacturing a semiconductor device, includes the steps of: forming a resin layer on an upper surface of a substrate including a photodiode such that the resin layer does not cover a light receiving region of the photodiode; forming at least one groove in the resin layer so as to surround the light receiving region; and subsequently mold-sealing the photodiode by loading the substrate into a mold and filling the mold with a molding resin.Type: GrantFiled: March 5, 2009Date of Patent: April 10, 2012Assignee: Sony CorporationInventors: Shuji Yoneda, Masato Oishi, Tamotsu Shinohara, Shinji Watanabe, Koji Miyata, Seiji Fukae, Kenji Yamauchi, Yoichi Goto, Masakazu Baba
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Patent number: 8115364Abstract: A permanent magnet power generator which, when used at an electric power generating facility such as a wind power plant, etc., would not be bulky and would not impede wind capture by a wind turbine; instead, it can raise the generated voltage without impeding wind capture has a generator shaft; at least three rotors, which are secured with the generator shaft, constituted by a plurality of plate-shaped structures having a permanent magnet attached thereto, and each disposed in the longitudinal direction of the generator shaft; and a stator, which is plate-shaped with a stator coil disposed in at least two gaps formed by the rotors, evenly-spaced apart from the generator shaft. The rotors and stators are disposed alternately in the longitudinal direction of the generator shaft, with a total of at least five stages. Also a wind power generator with a propeller on the shaft of this permanent magnet generator.Type: GrantFiled: February 29, 2008Date of Patent: February 14, 2012Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Takehisa Minowa, Hideki Kobayashi, Koji Miyata
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Publication number: 20110247025Abstract: It is an object of the invention to provide a disk case capable of easily determining a disk without changing hardware of a drive unit. A disk case of the present invention includes a case body in which a disk is held, an opening through which a portion of the disk is exposed, a shutter for opening and closing the opening, and a bridge portion located at an outer periphery of the disk and at the opening, wherein a dent having a diameter greater than an inner peripheral diameter of the bridge portion is formed at a position of a pickup moving path of the bridge portion.Type: ApplicationFiled: March 30, 2010Publication date: October 6, 2011Applicant: Panasonic CorporationInventor: Koji MIYATA
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Publication number: 20110232846Abstract: Disclosed is a magnetic field generator for magnetron plasma. The magnetic field generator is provided with a plurality of magnetic segments, and generates a predetermined multi-pole magnetic field around the periphery of a workpiece substrate within a process chamber. The strength of the multi-pole magnetic field is controlled so that the state of the multi-pole magnetic field is matched different plasma processes. Further, the pattern of the multi-pole magnetic field can be changed so as to match different sizes of the substrate.Type: ApplicationFiled: June 6, 2011Publication date: September 29, 2011Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Koji MIYATA, Kazuyuki TEZUKA, Koichi TATESHITA, Hiroo ONO, Kazuya NAGASEKI, Shinji HIMORI
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Publication number: 20110210810Abstract: The invention provides a sintered Nd base magnet which is free of a decline of remanence, has a high coercive force, especially at the edges thereof, is unsusceptible to demagnetization even at high temperature, and is suited for use in permanent magnet rotary machines.Type: ApplicationFiled: November 27, 2009Publication date: September 1, 2011Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Koji Miyata, Takehisa Minowa, Hajime Nakamura, Koichi Hirota, Masakatsu Honshima
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Patent number: 8001557Abstract: It is an object of the present invention to provide a slot-in type disk apparatus in which a moving position of a disk is precisely guided when the disk is inserted or discharged, thereby preventing the disk from coming into contact with an objective lens and further reducing the thickness of the disk apparatus.Type: GrantFiled: November 13, 2006Date of Patent: August 16, 2011Assignee: Panasonic CorporationInventors: Koji Miyata, Shinichi Wada
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Publication number: 20110192018Abstract: To reduce the cogging torque of servomotors, electric power steering motors, and others, there is provided a permanent magnet motor comprising: a rotor 10 comprising a rotor yoke 11 and a plurality of permanent magnets (M1-M10); and a stator 20 comprising a stator yoke 22, salient magnetic poles 21, and armature windings 23, wherein at least one of the permanent magnets is disposed in an adjustment position that is displaced from a corresponding reference position in at least one of the circumferential, radial, and axial directions of the rotor yoke, and the plurality of permanent magnets excluding the permanent magnet disposed in the adjustment position is disposed in the reference positions, and wherein the adjustment position is set so that the permanent magnet motor in which at least one of the plurality of permanent magnets is disposed in the adjustment position has a smaller cogging torque than a permanent magnet motor in which all of the plurality of permanent magnets are disposed in the reference posiType: ApplicationFiled: April 25, 2011Publication date: August 11, 2011Inventor: Koji MIYATA
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Publication number: 20110140065Abstract: The present invention provides a memory element and a memory device realizing reduced variations in resistance values in an initial state or erase state of a plurality of memory elements and capable of retaining the resistance value in a write/erase state for writing/erasing operations of a plurality of times. The memory element includes a first electrode, a memory layer, and a second electrode in order. The memory layer has: an ion source layer containing at least one of chalcogen elements of tellurium (Te), sulfur (S), and selenium (Se) and at least one metal element selected from copper (Cu), silver (Ag), zinc (Zn), and zirconium (Zr); and two or more high-resistance layers having a resistance value higher than that of the ion source layer and having different compositions.Type: ApplicationFiled: December 1, 2010Publication date: June 16, 2011Applicant: SONY CORPORATIONInventors: Akihiro Maesaka, Kazuhiro Ohba, Tetsuya Mizuguchi, Koji Miyata, Motonari Honda, Katsuhisa Aratani
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Patent number: 7960884Abstract: An axial gap rotating machine rigidly fixing permanent magnets without reducing magnetic flux and having a high output has: a housing; a rotating shaft rotatably supported in the housing; two rotors having disks rotatably integral with the rotating shaft, and permanent magnets arranged concentrically in spaced relation to each other on at least one side of surfaces of the rotating disks in spaced relation to each other on at least one side of surfaces of the rotating disks in spaced relation to each other; and a stator arranged between the rotors, spaced from the rotors and fixed to the housing, the stator having a plurality of coils disposed concentrically around the rotating shaft spaced from each other; wherein magnetic flux generated from the permanent magnets of the rotors intermittently penetrates the interior of each of the coils as the shaft rotates, wherein the rotating disk has a concave portion in the surface facing the stator in which the permanent magnets are disposed so as to protrude.Type: GrantFiled: June 27, 2008Date of Patent: June 14, 2011Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Koji Miyata, Naoki Watanabe, Masakatsu Honshima
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Patent number: 7958522Abstract: It is an object of the present invention to provide a slot-in type disk apparatus which can be reduced in thickness without deteriorating strength of a lever and a rear base. In a slot-in type disk apparatus, a base body 10 and a lid 20 constitute a chassis sheath, a disk-insertion opening 11 into which a disk is directly inserted is formed in a front surface of the chassis sheath, a traverse base 30 is disposed on the side of a front surface of the base body 10, a rear base 13 is disposed on the side of a rear surface of the base body 10, a printed board 14 is provided between the rear base 13 and the base body 10, and a link arm 105 is disposed between the rear base 13 and the printed board 14.Type: GrantFiled: November 13, 2006Date of Patent: June 7, 2011Assignee: Panasonic CorporationInventor: Koji Miyata
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Patent number: 7948136Abstract: To reduce the cogging torque of servomotors, electric power steering motors, and others, there is provided a permanent magnet motor comprising: a rotor 10 comprising a rotor yoke 11 and a plurality of permanent magnets (M1-M10); and a stator 20 comprising a stator yoke 22, salient magnetic poles 21, and armature windings 23, wherein at least one of the permanent magnets is disposed in an adjustment position that is displaced from a corresponding reference position in at least one of the circumferential, radial, and axial directions of the rotor yoke, and the plurality of permanent magnets excluding the permanent magnet disposed in the adjustment position is disposed in the reference positions, and wherein the adjustment position is set so that the permanent magnet motor in which at least one of the plurality of permanent magnets is disposed in the adjustment position has a smaller cogging torque than a permanent magnet motor in which all of the plurality of permanent magnets are disposed in the reference posiType: GrantFiled: August 17, 2005Date of Patent: May 24, 2011Assignee: Shin-Etsu Chemical Co., Ltd.Inventor: Koji Miyata
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Patent number: 7922865Abstract: In a magnetic field generator for magnetron plasma generation which comprises a dipole-ring magnet with a plurality of columnar anisotropic segment magnets arranged in a ring-like manner, or in an etching apparatus and a method both of which utilize the magnetic field generator, the uniformity of plasma treatment over the entire surface of a wafer (workpiece) is improved by controlling the direction of the magnetic field relative to the working surface of the wafer (workpiece) which is subject to plasma treatment such as etching.Type: GrantFiled: August 28, 2001Date of Patent: April 12, 2011Assignees: Shin-Etsu Chemical Co., Ltd., Tokyo Electron LimitedInventors: Koji Miyata, Jun Hirose, Akira Kodashima, Shigeki Tozawa, Kazuhiro Kubota, Yuki Chiba
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Publication number: 20110068651Abstract: In connection with a permanent magnet rotary machine comprising a rotor comprising a rotor core and a plurality of permanent magnet segments embedded in the rotor core and a stator comprising a stator core having a plurality of slots and windings therein, the rotor and the stator being disposed to define a gap therebetween, or a permanent magnet rotary machine comprising a rotor comprising a rotor core and a plurality of permanent magnet segments mounted on the surface of the rotor core and a stator comprising a stator core having a plurality of slots and windings therein, the rotor and the stator being disposed to define a gap therebetween, the rotor wherein each of the permanent magnet segments is an assembly of further divided permanent magnet pieces, and the coercive force near the surface of the magnet piece is higher than that in the interior of the magnet piece.Type: ApplicationFiled: September 18, 2009Publication date: March 24, 2011Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Koji Miyata, Minori Miyata, Takehisa Minowa, Hajime Nakamura, Koichi Hirota