Patents by Inventor Keiichi Kawakami

Keiichi Kawakami 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).

  • Publication number: 20170282500
    Abstract: A glass laminate includes a support substrate, an adhesive layer and a glass substrate in this order. The glass laminate has a peel strength between the support substrate and the adhesive layer different from a peel strength between the adhesive layer and the glass substrate. The glass laminate has a contact area between the adhesive layer and the support substrate and a contact area between the adhesive layer and the glass substrate both being 1200 cm2 or more. The glass substrate has a thickness of 0.3 mm or less. There are no bubbles or, when there is a bubble(s), the bubble(s) has a diameter of 10 mm or less, in a boundary between the support substrate and the adhesive layer or a boundary between the adhesive layer and the glass substrate, whichever has a smaller peel strength.
    Type: Application
    Filed: June 21, 2017
    Publication date: October 5, 2017
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Tatsuzo MIYAGOE, Hideaki MIYAZAWA, Shinjo MITANI, Akira NAKAZAWA, Keiichi KAWAKAMI
  • Patent number: 8486501
    Abstract: An object of the present invention is to provide a plastic ampule capable of suppressing volatilization and scattering of a drug solution and elution of plastic compounding ingredients into the drug solution, as well as suppressing whisker formation and deformation and damage of an opening when the plastic ampule is opened. A plastic ampule 10 according to the present invention includes a drug solution storage part 11 for storing a drug solution, a drug solution discharge tube 12 in communication with the drug solution storage part 11 and extending toward one side, and a top part 13 closing an end at the one side of the drug solution discharge tube 12, and the drug solution discharge tube 12 includes a fragile part 14 formed to have a thin thickness along a circumferential direction.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: July 16, 2013
    Assignee: Otsuka Pharmaceutical Factory, Inc.
    Inventors: Yuki Manabe, Tadaaki Inoue, Hideshi Okamoto, Keiichi Kawakami, Koichi Takeda
  • Patent number: 8377029
    Abstract: A drug solution filling plastic ampoule having gas, steam and light ray barrier properties, a drug permeation preventing capability and an absorption/adsorption preventing capability, and a production method for the plastic ampoule. The drug solution filling plastic ampoule includes a container body, a fusion-bonded portion which seals a mouth of the container body, and a wrench-off holder tab connected to the fusion-bonded portion. The ampoule is formed from a parison including two or more layers, at least one of which is a functional layer having at least one characteristic property selected from the group consisting of a gas permeation preventing capability, a steam permeation preventing capability, a light ray permeation preventing capability, a drug permeation preventing capability and a drug absorption/adsorption preventing capability.
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: February 19, 2013
    Assignee: Otsuka Pharmaceutical Factory, Inc.
    Inventors: Katsuyoshi Nagao, Hideshi Okamoto, Masamitsu Izumi, Keiichi Kawakami, Fujio Inoue
  • Patent number: 8343128
    Abstract: A multiple-chamber medical container 1 comprises a container body 5 having two chambers 9, 11 for containing medicaments therein and a partitioning weak seal portion 13 for separating the chambers 9, 11 from each other, a medicinal outlet portion 7 attached to the container body 5 for discharging the medicaments from the chambers therethrough, and an openable small container 15 disposed in the first chamber 9 and having a medicament enclosed therein, the partitioning seal portion 15 being openable so as to cause the chambers 9, 11 to communicate with each other for use. The small container 15 can be opened by opening the partitioning weak seal portion 13.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: January 1, 2013
    Assignee: Otsuka Pharmaceutical Factory, Inc.
    Inventors: Katsuyoshi Nagao, Toshiharu Yokoyama, Keiichi Kawakami
  • Patent number: 8148937
    Abstract: When a rectangular wave voltage control mode is selected, a control apparatus estimates the output torque of an alternating-current motor based on the outputs of a current sensor and a rotation angle sensor, and executes torque feedback control by adjusting the phase of rectangular wave voltage based on the difference between the torque estimated value and a torque command value. The control apparatus executes a switching interruption that outputs a control command to a switching element of an inverter every 60 degrees of electrical angle, and executes an angle interruption that samples the phase currents of the alternating-current motor based on the output of the current sensor and converts those phase currents into a d-axis current and a q-axis current every predetermined electrical angle that is set beforehand.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: April 3, 2012
    Assignees: Toyota Jidosha Kabushiki Kaisha, Denso Corporation
    Inventors: Takeshi Itoh, Keiichi Kawakami
  • Patent number: 8046123
    Abstract: In an electric vehicle having a plurality of MG units each including an AC motor and an inverter, a control apparatus executes system voltage stabilization control to suppress variations in a system voltage by adjusting an input power of a first MG unit or a second MG unit so as to reduce the difference between a target value and detected value of the system voltage. In execution of this control, either one or both of the MG units is selected by a selector by using information on the first MG unit and the second MG unit. The system voltage stabilization control is executed on the selected MG unit. Alternatively, the control apparatus may execute the system voltage stabilization control by selecting a voltage boosting converter.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: October 25, 2011
    Assignee: Denso Corporation
    Inventors: Tsuneyuki Egami, Keiichi Kawakami, Takashi Ogawa
  • Patent number: 8029885
    Abstract: Disclosed is a multi-layer film comprising: a surface layer having a thickness of 10 to 50 ?Êm made of an ethylene-?-olefin copolymer having a density of 0.935 to 0.950 g/cm3, a flexible layer having a thickness of 100 to 200 ?Êm made of an ethylene-?-olefin copolymer having a density of 0.860 to 0.930 g/cm3, a barrier layer having a thickness of 10 to 80 ?Êm made of a mixed resin containing 60 to 95% by weight of a cyclic olefin polymer and 5 to 40% by weight of an ethylene-?-olefin copolymer having a density of 0.900 to 0.965 g/cm3, and a seal layer having a thickness of 5 to 80 ?Êm made of an ethylene-?-olefin copolymer having a density of 0.910 to 0.950 g/cm3. This multi-layer film is suited for use as a material for production of a medicine container 10 because it suppresses adsorption of a medicine by the barrier layer and is also superior in strength and flexibility.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: October 4, 2011
    Assignee: Otsuka Pharmaceutical Factory, Inc.
    Inventors: Yuki Manabe, Hideshi Okamoto, Keiichi Kawakami
  • Publication number: 20100195938
    Abstract: Disclosed is a multi-layer film comprising: a surface layer having a thickness of 10 to 50 ?Ê m made of an ethylene-?-olefin copolymer having a density of 0.935 to 0.950 g/cm3, a flexible layer having a thickness of 100 to 200 ?Ê m made of an ethylene-?-olefin copolymer having a density of 0.860 to 0.930 g/cm3, a barrier layer having a thickness of 10 to 80 ?Ê m made of a mixed resin containing 60 to 95% by weight of a cyclic olefin polymer and 5 to 40% by weight of an ethylene-?-olefin copolymer having a density of 0.900 to 0.965 g/cm3, and a seal layer having a thickness of 5 to 80 ?Ê m made of an ethylene-?-olefin copolymer having a density of 0.910 to 0.950 g/cm3. This multi-layer film is suited for use as a material for production of a medicine container 10 because it suppresses adsorption of a medicine by the barrier layer and is also superior in strength and flexibility.
    Type: Application
    Filed: November 30, 2009
    Publication date: August 5, 2010
    Inventors: Yuki MANABE, Hideshi OKAMOTO, Keiichi KAWAKAMI
  • Patent number: 7755307
    Abstract: Right after a system operation start but before a smoothing capacitor has been sufficiently pre-charged, conversion voltage control is executed to control a voltage boosting converter so that a system voltage is first raised to a target value. After the smoothing capacitor has been pre-charged, the conversion voltage control is changed over to conversion power control to control the output power of the voltage boosting converter, so that the output power of the voltage boosting converter is brought into agreement with a command value. While the conversion power control is being executed, system voltage control by operating the input power to the MG unit is prohibited.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: July 13, 2010
    Assignee: Denso Corporation
    Inventors: Tsuneyuki Egami, Keiichi Kawakami, Takashi Ogawa
  • Publication number: 20100123418
    Abstract: When a rectangular wave voltage control mode is selected, a control apparatus estimates the output torque of an alternating-current motor based on the outputs of a current sensor and a rotation angle sensor, and executes torque feedback control by adjusting the phase of rectangular wave voltage based on the difference between the torque estimated value and a torque command value. The control apparatus executes a switching interruption that outputs a control command to a switching element of an inverter every 60 degrees of electrical angle, and executes an angle interruption that samples the phase currents of the alternating-current motor based on the output of the current sensor and converts those phase currents into a d-axis current and a q-axis current every predetermined electrical angle that is set beforehand.
    Type: Application
    Filed: November 17, 2009
    Publication date: May 20, 2010
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Takeshi ITOH, Keiichi KAWAKAMI
  • Publication number: 20100075081
    Abstract: ABSTRACT Disclosed is a multi-layer film comprising: a surface layer having a thickness of 10 to 50 fÊm made of an ethylene-f-olefin copolymer having a density of 0.935 to 0.950 g/cm3, a flexible layer having a thickness of 100 to 200 fÊm made of an ethylene-f-olefin copolymer having a density of 0.860 to 0.930 g/cm3, a barrier layer having a thickness of 10 to 80 fÊm made of a mixed resin containing 60 to 95% by weight of a cyclic olefin polymer and 5 to 40% by weight of an ethylene-f-olefin copolymer having a density of 0.900 to 0.965 g/cm3, and a seal layer having a thickness of 5 to 80 fÊm made of an ethylene-f-olelin copolymer having a density of 0.910 to 0.950 g/cm3. This multi-layer film is suited for use as a material for production of a medicine container 10 because it suppresses adsorption or a medicine by the barrier layer and is also superior in strength and flexibility.
    Type: Application
    Filed: April 6, 2009
    Publication date: March 25, 2010
    Inventors: Yuki Manabe Manabe, Hideshi Okamoto, Keiichi Kawakami
  • Patent number: 7653466
    Abstract: A control apparatus for a vehicle controls the input power of an AC motor to reduce the difference between a target value and detected value of the system voltage. When a rotation speed of the AC motor increases to be higher than a predetermined value or when a command value of a torque generated by the AC motor increases to be greater than a predetermined value, a current vector is adjusted to a value on a lagging side in order to control the input power of the AC motor. Thus, an input power operation quantity required for stabilizing the system voltage can be realized with a high degree of reliability. When the rotation speed and the command value decrease, the current vector is adjusted to a value on a leading side in order to control the input power of the AC motor.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: January 26, 2010
    Assignee: DENSO Corporation
    Inventors: Tsuneyuki Egami, Keiichi Kawakami, Takashi Ogawa
  • Patent number: 7615943
    Abstract: In electric vehicle control, system voltage stabilization control is executed to reduce the difference between a target value and detected value of a system voltage generated by a voltage boosting converter for an AC motor. Further, conversion power control is executed to reduce the difference between a command value and detected value of the conversion power, which is defined as the output power of the voltage boosting converter. Thus, variations in a system voltage caused by an error or the conversion power control can be reduced.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: November 10, 2009
    Assignee: DENSO Corporation
    Inventors: Tsuneyuki Egami, Keiichi Kawakami
  • Patent number: 7609023
    Abstract: In electric vehicle control, system voltage stabilization control is executed to reduce the difference between a target value and detected value of a system voltage generated by a voltage boosting converter for an AC motor. Further, conversion power control is executed to reduce the difference between a command value and detected value of the conversion power, which is defined as the output power of the voltage boosting converter. A conversion power correction quantity is computed from an input power operation quantity of the system voltage stabilization control and reflected in the conversion power control to correct the conversion power. Thus, variations in a system voltage caused by an error or the conversion power control can be reduced.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: October 27, 2009
    Assignee: DENSO Corporation
    Inventors: Tsuneyuki Egami, Keiichi Kawakami
  • Patent number: 7605552
    Abstract: A motor control unit executes a system voltage stabilization control for suppressing variation in a system voltage by operating reactive power of a motor/generator unit including an AC motor, and executes a conversion power control to control the output power of a voltage boosting converter to a command value. A target power operation amount necessary for stabilizing the system voltage is distributed to a motor/generator power operation amount command value and to a conversion power operation amount correction value. The target power operation amount can be obtained by being shared by the motor/generator unit and the voltage boosting converter, even when the target power operation amount is in excess of a limit value of power control amount of the motor/generator unit.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: October 20, 2009
    Assignee: Denso Corporation
    Inventors: Keiichi Kawakami, Tsuneyuki Egami, Takashi Ogawa
  • Patent number: 7586278
    Abstract: In a control apparatus for an electric vehicle, an input power operation quantity that reduces the difference between a target value of a system voltage and a detected value of the voltage is computed, and a duty ratio of a rectangular waveform applied to an inverter is set at a value that changes the input power of a MG unit by the input power operation quantity. The phase of the rectangular waveform is set at a value that suppresses torque variations caused by the duty ratio as variations of a torque generated by the AC motor. 3-phase voltage command signals are computed on the basis of the phase and the duty ratio and supplied to the inverter. In this way, variations in system voltage can be suppressed by controlling the input power of the AC motor, while sustaining the torque generated by the AC motor unchanged.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: September 8, 2009
    Assignee: DENSO Corporation
    Inventors: Tsuneyuki Egami, Keiichi Kawakami
  • Patent number: 7443117
    Abstract: In a hybrid vehicle control apparatus, a motor control unit executes a system voltage stabilization control, in which an input power to a MG unit is controlled to suppress variations in the system voltage. The motor control unit executes the input power control on the MG unit independently from a torque control on an AC motor so that the input power control and the torque control are stabilized. Before a smoothing capacitor is sufficiently, a conversion voltage control is executed to control an output voltage of a voltage booster converter while prohibiting the system voltage stabilization control. After the pre-charging of the capacitor, the conversion voltage control is changed to the conversion power control.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: October 28, 2008
    Assignee: Denso Corporation
    Inventors: Tsuneyuki Egami, Keiichi Kawakami, Takashi Ogawa
  • Publication number: 20080012512
    Abstract: A motor control unit executes a system voltage stabilization control for suppressing variation in a system voltage by operating reactive power of a motor/generator unit including an AC motor, and executes a conversion power control to control the output power of a voltage boosting converter to a command value. A target power operation amount necessary for stabilizing the system voltage is distributed to a motor/generator power operation amount command value and to a conversion power operation amount correction value. The target power operation amount can be obtained by being shared by the motor/generator unit and the voltage boosting converter, even when the target power operation amount is in excess of a limit value of power control amount of the motor/generator unit.
    Type: Application
    Filed: June 27, 2007
    Publication date: January 17, 2008
    Applicant: DENSO CORPORATION
    Inventors: Keiichi Kawakami, Tsuneyuki Egami, Takashi Ogawa
  • Publication number: 20070229009
    Abstract: In a hybrid vehicle control apparatus, a motor control unit executes a system voltage stabilization control, in which an input power to a MG unit is controlled to suppress variations in the system voltage. The motor control unit executes the input power control on the MG unit independently from a torque control on an AC motor so that the input power control and the torque control are stabilized. Before a smoothing capacitor is sufficiently, a conversion voltage control is executed to control an output voltage of a voltage booster converter while prohibiting the system voltage stabilization control. After the pre-charging of the capacitor, the conversion voltage control is changed to the conversion power control.
    Type: Application
    Filed: February 20, 2007
    Publication date: October 4, 2007
    Applicant: DENSO CORPORATION
    Inventors: Tsuneyuki Egami, Keiichi Kawakami, Takashi Ogawa
  • Publication number: 20070194763
    Abstract: Right after a system operation start but before a smoothing capacitor has been sufficiently pre-charged, conversion voltage control is executed to control a voltage boosting converter so that a system voltage is first raised to a target value. After the smoothing capacitor has been pre-charged, the conversion voltage control is changed over to conversion power control to control the output power of the voltage boosting converter, so that the output power of the voltage boosting converter is brought into agreement with a command value. While the conversion power control is being executed, system voltage control by operating the input power to the MG unit is prohibited.
    Type: Application
    Filed: January 17, 2007
    Publication date: August 23, 2007
    Applicant: Denso Corporation
    Inventors: Tsuneyuki Egami, Keiichi Kawakami, Takashi Ogawa