Patents by Inventor Takeshi Arakawa

Takeshi Arakawa 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).

  • Patent number: 7064490
    Abstract: A bulb type electrodeless discharge lamp, comprising a recessed part (102), wherein the maximum diameter of a light emitting tube (101) is 60 to 90 mm and the tube wall load of the light emitting tube (101) is 0.07 to 0.11 W/cm2, and a relation between the diameter Dc of the recessed part (102) and an interval ?h between the top of the recessed part (102) and the top part of the light emitting tube (101) meets the requirement of ?h?1.15×Dc+1.25 [mm].
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: June 20, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kiyoshi Hashimotodani, Takeshi Arakawa, Akira Hochi, Koichi Katase, Yuuji Omata, Yoshihisa Hagiwara
  • Patent number: 7049763
    Abstract: An electrodeless discharge lamp operating device including a light-transmitting discharge bulb 120, an induction coil including a core 103 and a coil 104, and a ballast circuit 140 for supplying a high-frequency power to the induction coil. The operating frequency of the ballast circuit 140 is in the range of 80 kHz to 500 kHz, and where the operating frequency of the ballast circuit 140 is f (kHz) and the power input to the discharge bulb 120 is P (W), the rare gas pressure p (Pa) in the discharge bulb 120 satisfies the relationship of the following expression: p ? A P - B f 2 - C [ Expression ? ? 1 ] (where A, B and C are constants having the following values: A=4.0×104, B=3.5×104 and C=6.2), and the power input P to the discharge bulb 120 is 7 W at minimum and 22 W at maximum.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: May 23, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Akira Hochi, Takeshi Arakawa, Kiyoshi Hashimotodani, Katsushi Seki, Yuuji Omata, Yoshihisa Hagiwara
  • Publication number: 20050241024
    Abstract: A DNA construct that encodes, when expressed in a plant cell, a protein complex comprising five monomeric fusion proteins; where each fusion protein comprises a cholera toxin B subunit linked at the 3? end of the cholera toxin B subunit to a first immunogenic antigen from a causal factor of a first infectious mammalian disease other than cholera; and where the antigen elicits a protective response to the disease.
    Type: Application
    Filed: February 3, 2005
    Publication date: October 27, 2005
    Inventors: William Langridge, Jie Yu, Takeshi Arakawa
  • Publication number: 20050225249
    Abstract: A bulb type electrodeless discharge lamp, comprising a recessed part (102), wherein the maximum diameter of a light emitting tube (101) is 60 to 90 mm and the tube wall load of the light emitting tube (101) is 0.07 to 0.11 W/cm2, and a relation between the diameter Dc of the recessed part (102) and an interval ?h between the top of the recessed part (102) and the top part of the light emitting tube (101) meets the requirement of ?h?1.15×Dc+1.25 [mm].
    Type: Application
    Filed: July 2, 2003
    Publication date: October 13, 2005
    Inventors: Kiyoshi Hashimotodani, Takeshi Arakawa, Akira Hochi, Koichi Katase, Yuuji Omata, Yoshihisa Hagiwara
  • Publication number: 20050206322
    Abstract: An electrodeless discharge lamp operating device including a light-transmitting discharge bulb 120, an induction coil including a core 103 and a coil 104, and a ballast circuit 140 for supplying a high-frequency power to the induction coil. The operating frequency of the ballast circuit 140 is in the range of 80 kHz to 500 kHz, and where the operating frequency of the ballast circuit 140 is f (kHz) and the power input to the discharge bulb 120 is P (W), the rare gas pressure p (Pa) in the discharge bulb 120 satisfies the relationship of the following expression: p ? A P - B f 2 - C [ Expression ? ? ? 1 ] (where A, B and C are constants having the following values: A=4.0×104, B=3.5×104 and C=6.2), and the power input P to the discharge bulb 120 is 7 W at minimum and 22 W at maximum.
    Type: Application
    Filed: May 30, 2003
    Publication date: September 22, 2005
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD
    Inventors: Akira Hochi, Takeshi Arakawa, Kiyoshi Hashimotodani, Katsushi Seki, Yuuji Omata, Yoshihisa Hagiwara
  • Publication number: 20050186219
    Abstract: A protein complex comprising five monomeric fusion proteins, where each fusion protein comprises a cholera toxin B subunit linked at the 3? end of the cholera toxin B subunit to a first immunogenic antigen from a causal factor of a first infectious mammalian disease, and where the antigen elicits a protective response to the disease.
    Type: Application
    Filed: November 30, 2004
    Publication date: August 25, 2005
    Inventors: William Langridge, Jie Yu, Takeshi Arakawa
  • Publication number: 20050169867
    Abstract: A surface of particles of at least one powder selected from PMMA, nylon, polystyrene, a silicone elastomer powder, benzoguanamine, a styrenedivinylbenzene pinhole polymer, ethylene tetrafluoride, a polyethylene powder, a polyurethane powder, a silk powder, an organic pigment and a composite of at least one of these and a metal oxide and/or a metal hydroxide is treated with a low-molecular organosilicon derivative, with or without a water-soluble cationic polymer to improve the hydrophilicity of the powder. The thus-treated powder is quite excellent in dispersibility (readily dispersible) in an aqueous dispersion medium, especially an aqueous dispersion medium in acidic and alkaline conditions, specifically with pH from 3 to 13 and in dispersion stability. The use of the surface-treated powder provides a dispersion, preferably dispersion for cosmetic, excellent in dispersibility and dispersion stability and the like.
    Type: Application
    Filed: January 25, 2005
    Publication date: August 4, 2005
    Inventors: Masaakira Horino, Takeshi Arakawa
  • Publication number: 20050044588
    Abstract: A plant-based edible vaccine against autoimmune disease prepared by expressing a CTB-autoantigen chimeric gene construct in plant cells and transgenic plants is disclosed. DNA constructs, expression vectors comprising a nucleotide sequence that encodes a CTB-autoantigen chimeric gene, which are optimized for expression in plants, are described.
    Type: Application
    Filed: August 17, 2004
    Publication date: February 24, 2005
    Inventors: William Langridge, Takeshi Arakawa
  • Publication number: 20050012458
    Abstract: An electrodeless self-ballasted fluorescent lamp includes: a luminous bulb 1 having a cavity portion 15; an induction coil 3 inserted in the cavity portion 15; a ballast 4 electrically connected to the induction coil 3; and a base 7, wherein the luminous bulb 1, the ballast 4 and the base 7 are configured as one unit. The luminous bulb 1 includes an approximately spherical outer tube 12 and an inner tube 11. At least the surface of the upper hemisphere of the outer tube 12 is coated with a silicone rubber 10 having the property of transmitting light.
    Type: Application
    Filed: June 27, 2003
    Publication date: January 20, 2005
    Inventors: Takeshi Arakawa, Akira Hochi, Tomohiro Sawa, Mitsuharu Kawasaki
  • Publication number: 20040253284
    Abstract: There is provided a powder having a base substance usable as a powder for cosmetics, a layer of hydroxyapatite which exists directly on the surface of the base substance and a layer of zinc oxide which exists directly on the surface of the layer of hydroxyapatite, and containing 5 to 30% by weight of the hydroxyapatite and 10 to 50% by weight of the zinc oxide based on the total weight of the powder. This powder is suitable for use in cosmetics. As the powder has an improved properties for cosmetics, or adsorbent property of unsaturated fatty acids or sebum, it is also useful for a sebum-adsorbent agent, a body deodorant or the like as well as the cosmetics.
    Type: Application
    Filed: April 13, 2004
    Publication date: December 16, 2004
    Inventors: Masaakira Horino, Takeshi Arakawa
  • Patent number: 6777546
    Abstract: A plant-based edible vaccine against autoimmune disease prepared by expressing a CTB-autoantigen chimeric gene construct in plant cells and transgenic plants is disclosed. DNA constructs, expression vectors comprising a nucleotide sequence that encodes a CTB-autoantigen chimeric gene, which are optimized for expression in plants, are described.
    Type: Grant
    Filed: April 22, 1999
    Date of Patent: August 17, 2004
    Assignee: Loma Linda University
    Inventors: William H. R. Langridge, Takeshi Arakawa
  • Patent number: 6768254
    Abstract: A self-ballasted electrodeless discharge lamp includes a discharge vessel having a cavity, an induction coil that is inserted into the cavity, a ballast for supplying power to the induction coil, a case for covering the ballast, and a lamp base provided in the case. The discharge vessel is secured to the case via a holder. A part of the discharge vessel and a first portion of the holder are engaged with each other to constitute a combination structure. A second portion of the holder and a part of the case are engaged with each other to constitute a combination structure.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: July 27, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takeshi Arakawa, Mitsuharu Kawasaki, Kiyoshi Hashimotodani, Kenichiro Takahashi, Koji Miyazaki, Katsushi Seki, Toshiaki Kurachi, Kenji Itaya
  • Patent number: 6762550
    Abstract: An electrodeless discharge lamp with a first coupling member includes a translucent discharge vessel in which a discharge gas is enclosed. A bobbin that includes a coil holding part for an induction coil and a vessel mounting part with a second coupling member is formed as a single piece. The coil holding part holds the induction coil on an outer surface thereof and is placed in proximity to the discharge vessel. The first and second coupling members are complementary and engage to mount the discharge vessel on the vessel mounting part of the bobbin to assure a long life and a positioning accuracy of the discharge vessel and the induction coil thereof.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: July 13, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kenji Itaya, Takeshi Arakawa, Toshiaki Kurachi, Kouji Miyazaki
  • Publication number: 20030165543
    Abstract: A DNA construct that encodes, upon expression in a plant cell, a fusion protein comprising a multimeric cholera toxin B subunit and a first immunogenic antigen from a causal factor of a mammalian disease. A DNA construct that encodes, upon expression in a plant cell, a fusion protein comprising a cholera toxin A2 subunit, a multimeric cholera toxin B subunit, a first immunogenic antigen from a causal factor of a mammalian disease, and a first immunogenic antigen from a causal factor of a mammalian disease.
    Type: Application
    Filed: January 29, 2001
    Publication date: September 4, 2003
    Inventors: William H.R. Langridge, Jie Yu, Takeshi Arakawa
  • Publication number: 20030132706
    Abstract: An object of the present invention is to provide an electrodeless discharge lamp whose discharge vessel will not fall off for long until the last stage of the lifespan of the lamp, and is capable of obtaining a uniform luminous performance throughout its luminous area by assuring a positioning accuracy of the discharge vessel and the induction coil thereof.
    Type: Application
    Filed: December 23, 2002
    Publication date: July 17, 2003
    Inventors: Kenji Itaya, Takeshi Arakawa, Toshiaki Kurachi, Kouji Miyazaki
  • Patent number: 6570342
    Abstract: A fluorescent lamp includes: an emission tube for generating a luminous flux; a first filament provided at one end of the emission tube; a second filament provided at another end of the emission tube; first current regulator having a first impedance; a first electrode pin coupled to one end of the first filament via the first current regulator; a first switch coupled in parallel to the first current regulator; a second switch; a second electrode pin coupled to another end of the first filament via the second switch; and a control circuit for controlling the first switch and the second switch so as to be opened or closed. The control circuit doses the first switch and the second switch before the fluorescent lamp is lit and during a nominal lighting period after the fluorescent lamp is lit, and opens the first switch and the second switch during a power conservation lighting period following the nominal lighting period.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: May 27, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuaki Okubo, Yoshinori Tanabe, Masanori Shimizu, Takeshi Arakawa, Yoko Shimomura
  • Publication number: 20030021803
    Abstract: A DNA construct that encodes, upon expression in a plant cell, a fusion protein comprising a multimeric cholera toxin B subunit and a first immunogenic antigen from a causal factor of a mammalian disease. A DNA construct that encodes, upon expression in a plant cell, a fusion protein comprising a cholera toxin A2 subunit, a multimeric cholera toxin B subunit, a first immunogenic antigen from a causal factor of a mammalian disease, and a first immunogenic antigen from a causal factor of a mammalian disease.
    Type: Application
    Filed: September 16, 2002
    Publication date: January 30, 2003
    Inventors: William H.R. Langridge, Jie Yu, Takeshi Arakawa
  • Patent number: 6504305
    Abstract: A fluorescent lamp is capable of easily achieving a reduction of power consumption only be being mounted on a conventional lighting apparatus, whether or not the lighting apparatus has a dimming function. The fluorescent lamp includes an arc tube; and a current suppressing section for suppressing a lamp current which flows in the arc tube, after the elapse of a predetermined time after the power is turned on, and during an operation of the fluorescent lamp.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: January 7, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuaki Ohkubo, Yoshinori Tanabe, Masanori Shimizu, Takeshi Arakawa
  • Publication number: 20020172882
    Abstract: A toner for electrophotography is so prepared that a wax in a binder resin has an average diameter in the range from 0.1 to 3.0 &mgr;m so as to alleviate hot offsetting and filming, and that the toner contains 1.0 to 2.5% by volume of a fine particle toner with particle diameters of 5.04 &mgr;m or smaller so as to grind, at an early stage, the toner components that have attached to a photoconductor and thereby prevent filming.
    Type: Application
    Filed: January 31, 2002
    Publication date: November 21, 2002
    Inventors: Takahiro Ishihara, Masami Tsujihiro, Yoichiro Watanabe, Norio Kubo, Hidekazu Tamura, Akinori Koyama, Takeshi Arakawa, Hiroshi Shimoyama
  • Publication number: 20020158567
    Abstract: A self-ballasted electrodeless discharge lamp includes a discharge vessel having a cavity, an induction coil that is inserted into the cavity, a ballast for supplying power to the induction coil, a case for covering the ballast, and a lamp base provided in the case. The discharge vessel is secured to the case via a holder. A part of the discharge vessel and a first portion of the holder are engaged with each other to constitute a combination structure. A second portion of the holder and a part of the case are engaged with each other to constitute a combination structure.
    Type: Application
    Filed: April 26, 2002
    Publication date: October 31, 2002
    Inventors: Takeshi Arakawa, Mitsuharu Kawasaki, Kiyoshi Hashimotodani, Kenichiro Takahashi, Koji Miyazaki, Katsushi Seki, Toshiaki Kurachi, Kenji Itaya