Patents by Inventor Hirotaka Masaki
Hirotaka Masaki 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: 11870426Abstract: A capacitor-insulated semiconductor relay includes an RC oscillation circuit, a waveform regulation circuit, a booster circuit, a charging/discharging circuit, and an output circuit. The RC oscillation circuit generates first and second signals that are inverse in phase to each other. The waveform regulation circuit increases rise and fall times of the first signal, and rise and fall times of the second signal. Output signals from the waveform regulation circuit are respectively inputted to first and second high dielectric strength capacitors and that are provided in the booster circuit and connected in parallel to each other. The booster circuit receives the output signals from the waveform regulation circuit to generate a predetermined voltage. The output circuit is driven based on the predetermined voltage.Type: GrantFiled: February 12, 2020Date of Patent: January 9, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yu Bungi, Yasushi Konishi, Hirotaka Masaki
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Patent number: 11817850Abstract: A capacitor-insulated semiconductor relay includes an RC oscillation circuit, a waveform regulation circuit, a booster circuit, a charging/discharging circuit, and an output circuit. The RC oscillation circuit generates first and second signals that are inverse in phase to each other. The waveform regulation circuit increases rise and fall times of the first signal, and rise and fall times of the second signal. Output signals from the waveform regulation circuit are respectively inputted to first and second high dielectric strength capacitors and that are provided in the booster circuit and connected in parallel to each other. The booster circuit receives the output signals from the waveform regulation circuit to generate a predetermined voltage. The output circuit is driven based on the predetermined voltage.Type: GrantFiled: February 12, 2020Date of Patent: November 14, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yu Bungi, Yasushi Konishi, Hirotaka Masaki
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Publication number: 20220224322Abstract: A capacitor-insulated semiconductor relay includes an RC oscillation circuit, a waveform regulation circuit, a booster circuit, a charging/discharging circuit, and an output circuit. The RC oscillation circuit generates first and second signals that are inverse in phase to each other. The waveform regulation circuit increases rise and fall times of the first signal, and rise and fall times of the second signal. Output signals from the waveform regulation circuit are respectively inputted to first and second high dielectric strength capacitors and that are provided in the booster circuit and connected in parallel to each other. The booster circuit receives the output signals from the waveform regulation circuit to generate a predetermined voltage. The output circuit is driven based on the predetermined voltage.Type: ApplicationFiled: February 12, 2020Publication date: July 14, 2022Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Yu BUNGI, Yasushi KONISHI, Hirotaka MASAKI
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Patent number: 7325418Abstract: The present invention is directed to reduce the total footprint of a press forming system for glass having a plurality of press units, and also to increase an actual availability of each press unit. A plurality of press units are arranged in two parallel rows and a first transfer robot is arranged at the center of the space between the two rows. In adjacent of the moving area of the first transfer robot, a palette changer is arranged. A tray in use is mounted on a first base of the palette changer and a stand-by tray before use is placed on a second base. Blanks and formed products are stored in the tray. Press units equipped with second transfer robots, respectively. In front of the press units, intermediate transfer points are respectively provided for temporarily storing a blank and a formed product.Type: GrantFiled: May 9, 2003Date of Patent: February 5, 2008Assignee: Toshiba Machine Co., Ltd.Inventors: Yasuo Yamamoto, Isao Matsuzuki, Hiroshi Murakoshi, Hirotaka Masaki
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Patent number: 6823695Abstract: An object of the present invention is to enable to use a common transfer machine for transferring performs to and for transferring products from a press-forming system for glass having a plurality of press units. The press-forming system for glass has a plurality of press units. A linear moving stage is arranged in the proximity of the press units. A transfer robot is mounted on the linear moving stage. A pallet changer is arranged in the proximity of an end of the linear moving stage. A tray presently in use is mounted on a first mount and a new tray on standby is mounted on a second mount on the pallet changer. The inner space of the tray is partitioned into sections so as to correspond to press units in number. In each section, a plurality of pockets is arranged for storing preforms or products one by one.Type: GrantFiled: March 22, 2002Date of Patent: November 30, 2004Assignee: Toshiba Machine Co., Ltd.Inventors: Satoshi Fukuyama, Hiroaki Fujii, Isao Matsuzuki, Hirotaka Masaki
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Publication number: 20040000170Abstract: An optical element molding apparatus according to the present invention comprises a sealed molding chamber, a pair of molds arranged in the molding chamber, and a vacuum-pump means which vacuum-pumps an inside of the molding chamber. The vacuum-pump means includes a twist-groove-vacuum pump having a twisted groove on a surface of a rotor which is rotated at a high speed, and a rotary pump. The pair of molds are adapted to mold an optical element by press-molding an optical element material which is heated to a temperature higher than a transition point.Type: ApplicationFiled: June 16, 2003Publication date: January 1, 2004Applicant: TOSHIBA KIKAI KABUSHIKI KAISHAInventors: Shusaku Matsumura, Hirotaka Masaki
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Publication number: 20030209036Abstract: The present invention is directed to reduce the total footprint of a press forming system for glass having a plurality of press units, and also to increase an actual availability of each press unit. A plurality of press units are arranged in two parallel rows and a first transfer robot is arranged at the center of the space between the two rows. In adjacent of the moving area of the first transfer robot, a palette changer is arranged. A tray in use is mounted on a first base of the palette changer and a stand-by tray before use is placed on a second base. Blanks and formed products are stored in the tray. Press units equipped with second transfer robots, respectively. In front of the press units, intermediate transfer points are respectively provided for temporarily storing a blank and a formed product.Type: ApplicationFiled: May 9, 2003Publication date: November 13, 2003Applicant: TOSHIBA MACHINE CO., LTD.Inventors: Yasuo Yamamoto, Isao Matsuzuki, Hiroshi Murakoshi, Hirotaka Masaki
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Publication number: 20020139146Abstract: An object of the present invention is to enable to use a common transfer machine for transferring performs to and for transferring products from a press-forming system for glass having a plurality of press units. The press-forming system for glass has a plurality of press units. A linear moving stage is arranged in the proximity of the press units. A transfer robot is mounted on the linear moving stage. A pallet changer is arranged in the proximity of an end of the linear moving stage. A tray presently in use is mounted on a first mount and a new tray on standby is mounted on a second mount on the pallet changer. The inner space of the tray is partitioned into sections so as to correspond to press units in number. In each section, a plurality of pockets is arranged for storing preforms or products one by one.Type: ApplicationFiled: March 22, 2002Publication date: October 3, 2002Inventors: Satoshi Fukuyama, Hiroaki Fujii, Isao Matsuzuki, Hirotaka Masaki
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Patent number: 5938807Abstract: In press molding, a shaft (metal mold 13) is moved by positional or torque control to cause upper and lower molds to reach a set position slightly before a position where the upper and lower molds are set in a final mold closed state. As soon as the upper and lower molds reaches the set position, the control is switched to torque control using a small force which does not deform a glass material to perform feedback control. For this reason, when the cooling process is started, the mobile shaft is moved by the same amount as a contraction amount of the shaft, the actual position of the shaft is moved. However, a tight contact state between the molds and the glass material is kept without changing the thickness of the glass material, and positional control and torque control can be apparently performed at once. Thereafter, when temperature reaches an almost glass transition point, final pressing is performed.Type: GrantFiled: February 5, 1998Date of Patent: August 17, 1999Assignee: Toshiba Machine Co., Ltd.Inventors: Yoshizo Komiyama, Tetsuya Tanioka, Toshihisa Kamano, Hirotaka Masaki
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Patent number: 5858051Abstract: A method of manufacturing an optical waveguide comprises a first step of laminating, on one major surface of a first glass material, a second glass material to a desired thickness, the second glass material having optical characteristics different from those of the first glass material, a second step of forming the second glass material to have a desired circuit pattern, and a third step of laminating a third glass material having optical characteristics similar to those of the first glass material on an entire surface of the first glass material on which the circuit pattern is formed by the second glass material. In at least one of the first and third steps, the glass material to be laminated is laminated by coupling.Type: GrantFiled: May 8, 1996Date of Patent: January 12, 1999Assignee: Toshiba Machine Co., Ltd.Inventors: Yoshizo Komiyama, Isao Matsuzuki, Kazunori Urushibata, Toshihisa Kamano, Tetsuya Tanioka, Hirotaka Masaki
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Patent number: 5782946Abstract: In press molding, a shaft (metal mold 13) is moved by positional or torque control to cause upper and lower molds to reach a set position slightly before a position where the upper and lower molds are set in a final mold closed state. As soon as the upper and lower molds reaches the set position, the control is switched to torque control using a small force which does not deform a glass material to perform feedback control. For this reason, when the cooling process is started, the mobile shaft is moved by the same amount as a contraction amount of the shaft, the actual position of the shaft is moved. However, a tight contact state between the molds and the glass material is kept without changing the thickness of the glass material, and positional control and torque control can be apparently performed at once. Thereafter, when temperature reaches an almost glass transition point, final pressing is performed.Type: GrantFiled: January 30, 1996Date of Patent: July 21, 1998Assignee: Toshiba Machine Co., Ltd.Inventors: Yoshizo Komiyama, Tetsuya Tanioka, Toshihisa Kamano, Isao Matsuzuki, Hirotaka Masaki, Kazunori Urushibata