Patents by Inventor Naoki Hatakeyama
Naoki Hatakeyama 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: 20090081380Abstract: The reactor for polycrystalline silicon is a reactor for polycrystalline silicon in which a silicon seed rod installed inside the reactor is heated by supplying electricity, a raw material gas supplied inside the reactor is allowed to react, thereby producing polycrystalline silicon on the surface of the silicon seed rod, and specifically, the reactor for polycrystalline silicon is provided with a raw material gas supply port installed on the bottom of the reactor and a raw material gas supply nozzle attached to the raw material gas supply port so as to be communicatively connected and extending upward, in which the upper end of the raw material gas supply nozzle is set to a height in a range from ?10 cm to +5 cm on the basis of the upper end of the electrode which retains the silicon seed rod.Type: ApplicationFiled: September 19, 2008Publication date: March 26, 2009Applicant: Mitsubishi Materials CorporationInventors: Toshihide Endoh, Toshiyuki Ishii, Masaaki Sakaguchi, Naoki Hatakeyama
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Patent number: 7455731Abstract: A polycrystalline silicon rod according to present invention has a structure for hanging of polycrystalline silicon rods to each other end-to-end, so that the efficiency of melting polycrystalline silicon can be increased considerably. A polycrystalline silicon rod obtained by entirely or partially removing a peripheral portion from the rod to leave a central portion, and processing the central portion, preferably, the peripheral portion is removed by grinding in an amount corresponding to 10 to 60% of the diameter of the rod, and then subjected to groove-forming processing. This makes annealing unnecessary.Type: GrantFiled: May 1, 2006Date of Patent: November 25, 2008Assignee: Mitsubishi Materials CorporationInventors: Mamoru Nakano, Yukio Yamaguchi, Teruhisa Kitagawa, Rikito Sato, Naoki Hatakeyama
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Patent number: 7246415Abstract: [PROBLEM] To provide a interlocking device and a packaging bag therewith wherein the interlocking device has sufficient heat stability against retort sterilization treatment and deformational change after said treatment small enough not to be impaired its reopenability. [SOLUTION MEANS] A interlocking device having a pair of male and female profiles wherein: said male and female profiles have non-heat-sealing part to bag body and heat-sealing part to bag body; where said non-heat-sealing part consists of polypropylene type resin composition (A) having main melting peak temperature observed by differential scanning calorimetry less than 150 degree C. and the melt flow rate at 230 degree C. from 0.5 g/10 min to 20 g/10 min; and said heat-sealing part consists of polypropylene type resin composition (B) having main melting peak temperature observed by DSC, not less than 140 degree C. and the melt flow rate at 230 degree C. from 0.Type: GrantFiled: March 24, 2005Date of Patent: July 24, 2007Assignee: C.I. Sanplus Co., Ltd.Inventors: Tatsushi Takatori, Yoshio Ohya, Naoki Hatakeyama
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Publication number: 20060292322Abstract: This engaging member includes a male part and a female part each of which is capable of engaging with each other, in which each of the male part and the female part has a welded part to a main body of a bag and a part other than the welded part, at least the welded part is formed by a resin composition including (A) a polypropylene type resin having a maximum melting peak temperature measured by a differential calorimeter of not more than 145° C., and a melt flow rate ranging from 0.5 g/10 min. to 20 g/10 min., and (B) a polybutene type resin having a maximum melting peak temperature measured by a differential calorimeter of not more than 130° C., and a melt flow rate ranging from 0.1 g/10 min. to 20 g/10 min.Type: ApplicationFiled: June 27, 2005Publication date: December 28, 2006Inventors: Masayoshi Nakajima, Naoki Hatakeyama
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Publication number: 20060228565Abstract: A polycrystalline silicon rod according to present invention has a structure for hanging of polycrystalline silicon rods to each other end-to-end, so that the efficiency of melting polycrystalline silicon can be increased considerably. A polycrystalline silicon rod obtained by entirely or partially removing a peripheral portion from the rod to leave a central portion, and processing the central portion, preferably, the peripheral portion is removed by grinding in an amount corresponding to 10 to 60% of the diameter of the rod, and then subjected to groove-forming processing. This makes annealing unnecessary.Type: ApplicationFiled: May 1, 2006Publication date: October 12, 2006Applicant: Mitsubishi Materials Polycrystalline Silicon Corp.Inventors: Mamoru Nakano, Yukio Yamaguchi, Teruhisa Kitagawa, Rikito Sato, Naoki Hatakeyama
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Publication number: 20060213038Abstract: [PROBLEM] To provide a interlocking device and a packaging bag therewith wherein the interlocking device has sufficient heat stability against retort sterilization treatment and deformational change after said treatment small enough not to be impaired its reopenability. [SOLUTION MEANS] A interlocking device having a pair of male and female profiles wherein: said male and female profiles have non-heat-sealing part to bag body and heat-sealing part to bag body; where said non-heat-sealing part consists of polypropylene type resin composition (A) having main melting peak temperature observed by differential scanning calorimetry less than 150 degree C. and the melt flow rate at 230 degree C. from 0.5 g/10 min to 20 g/10 min; and said heat-sealing part consists of polypropylene type resin composition (B) having main melting peak temperature observed by DSC, not less than 140 degree C. and the melt flow rate at 230 degree C. from 0.Type: ApplicationFiled: March 24, 2005Publication date: September 28, 2006Inventors: Tatsushi Takatori, Yoshio Ohya, Naoki Hatakeyama
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Patent number: 7060355Abstract: A polycrystalline silicon rod according to present invention has a structure for hanging of polycrystalline silicon rods to each other end-to-end, so that the efficiency of melting polycrystalline silicon can be increased considerably. A polycrystalline silicon rod obtained by entirely or partially removing a peripheral portion from the rod to leave a central portion, and processing the central portion, preferably, the peripheral portion is removed by grinding in an amount corresponding to 10 to 60% of the diameter of the rod, and then subjected to groove-forming processing. This makes annealing unnecessary.Type: GrantFiled: June 1, 2001Date of Patent: June 13, 2006Assignee: Mitsubishi Materials Polycrystalline Silicon CorporationInventors: Mamoru Nakano, Yukio Yamaguchi, Teruhisa Kitagawa, Rikito Sato, Naoki Hatakeyama
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Publication number: 20030183162Abstract: A polycrystalline silicon rod according to present invention has a structure for hanging of polycrystalline silicon rods to each other end-to-end, so that the efficiency of melting polycrystalline silicon can be increased considerably. A polycrystalline silicon rod obtained by entirely or partially removing a peripheral portion from the rod to leave a central portion, and processing the central portion, preferably, the peripheral portion is removed by grinding in an amount corresponding to 10 to 60% of the diameter of the rod, and then subjected to groove-forming processing. This makes annealing unnecessary.Type: ApplicationFiled: May 15, 2003Publication date: October 2, 2003Inventors: Mamoru Nakano, Yukio Yamaguchi, Teruhisa Kitagawa, Rikito Sato, Naoki Hatakeyama
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Patent number: 6469458Abstract: Auxiliary deflection coils are connected to horizontal deflection coils. Each auxiliary deflection coil is disposed in the intermediate region between the inner peripheral end adjacent to a window and the outer peripheral end. Each horizontal deflection coil is dividable into three regions extending from its winding introductory part to its winding terminal part. A variable inductance coil is connected in parallel with the intermediate region to control the horizontal deflection current flowing across the horizontal deflection coil. The variable inductance coil has a cylindrical core installed in a hollow space of a bobbin and a coil connected in parallel with the auxiliary coil. A disc core is provided adjacent to the coil. The disc core has an end face larger in area than an end face of the cylindrical core.Type: GrantFiled: July 16, 1998Date of Patent: October 22, 2002Assignee: Victor Company of Japan, Ltd.Inventors: Takahiro Nozawa, Yoshihiko Wada, Keiji Morimoto, Kenichi Ikeda, Naoki Hatakeyama
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Patent number: 6177760Abstract: The present invention provides deflection yoke devices used for a cathode ray tube. One of the deflection yoke devices of the present invention comprises a compensation coil having a bobbin formed with a hollow in which an internal thread is cut, a screw core forcibly fitting in the hollow of the bobbin and a damping material interposed between the bobbin and the screw core to prevent the displacement of the screw core when an external vibration or a shock is applied to the deflection yoke device.Type: GrantFiled: May 21, 1998Date of Patent: January 23, 2001Assignee: Victor Company of Japan, Ltd.Inventors: Yusuke Okawa, Yoji Motomiya, Takasuke Koga, Naoki Hatakeyama, Keiji Morimoto, Kinji Fukui, Kenichi Ikeda
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Patent number: 6124773Abstract: A deflection yoke includes a coil, a base board, and a terminal. The terminal is mounted on the base board. The terminal extends from the base board. The terminal has a first portion and a second portion. The first portion of the terminal extends from the base board and has a substantially circular cross-section. The second portion of the terminal extends from the first portion thereof and has a cross-section with a corner. A lead extending from the coil is wound on the first and second portions of the terminal as a winding on the terminal. The winding has a first portion and a second portion. The first portion of the winding extends around the first portion of the terminal. The second portion of the winding extends around the second portion of the terminal. At least part of of the second portion of the winding is soldered to the second portion of the terminal while at least part of the first portion of the winding is non-soldered.Type: GrantFiled: January 21, 1998Date of Patent: September 26, 2000Assignee: Victor Company of Japan, Ltd.Inventors: Yusuke Okawa, Hiroshi Kimura, Takasuke Koga, Naoki Hatakeyama
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Patent number: 6091211Abstract: A mis-convergence correction device includes a first controlled coil unit, a second controlled coil unit, a controlling coil unit, and a coil holder. The first controlled coil unit includes first and second drum cores and a first controlled coil. Each of the first and second drum cores has circular flanges at its opposite ends respectively. The first controlled coil is provided on a portion of the first drum core between its flanges and also a portion of the second drum core between its flanges. The second controlled coil unit includes third and fourth drum cores and a second controlled coil. Each of the third and fourth drum cores has circular flanges at its opposite ends respectively. The second controlled coil is provided on a portion of the third drum core between its flanges and also a portion of the fourth drum core between its flanges. The controlling coil unit is located between the first and second controlled coil units.Type: GrantFiled: April 27, 1998Date of Patent: July 18, 2000Assignee: Victor Company of Japan, Ltd.Inventors: Takasuke Koga, Naoki Hatakeyama
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Patent number: 5798606Abstract: A deflection yoke 200 is comprised of a pair of separators 1, 1 formed in a funnel shape, having a large brim and a small brim. A first flange 1a is formed on the small brim, and a second flange 1b is formed on the large brim. A substrate 5 is held by at least one of the first flange and the second flange. A protective cover 26 is provided for protecting the substrate independently from the substrate by being held to the first flange and the second flange.Type: GrantFiled: February 4, 1997Date of Patent: August 25, 1998Assignee: Victor Company of Japan, Ltd.Inventors: Takasuke Koga, Keiji Morimoto, Naoki Hatakeyama