Patents by Inventor Masatoshi Tanaka

Masatoshi Tanaka 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: 20140124375
    Abstract: An object of the present invention is to provide an electrodeposition paint composition and a method of forming an electrodeposited coating, which exhibit quality of coating deposition even in the interior of narrow spaces of objects subjected to painting. A solution of the object is cationic electrodeposition paint composition in which in an aqueous medium contained are a cationic epoxy resin, a blocked isocyanate curing agent, a hydrophobic agent wherein an SP value of the hydrophobic agent (C) is 10.2 or more and less than 10.6 and is lower by 0.6 to 1.0 than an SP value of the cationic epoxy resin, a viscosity modifier, and a neutralizing acid, and in which coulombic efficiency of the cationic electrodeposition paint composition is 2.0 to 2.5 mg/(?m·C). A voltage boost rate of the voltage in painting is 30 to 70V/10 seconds.
    Type: Application
    Filed: May 11, 2012
    Publication date: May 8, 2014
    Inventors: Masahiro Takegawa, Masatoshi Tanaka, Takeshi Aiba, Takeshi Nomoto
  • Patent number: 8606065
    Abstract: An optical fiber (10) includes: a core (11); a first cladding (12) surrounding the core (11) and having a lower refractive index than the core (11); and a second cladding (13) surrounding the first cladding (12) and having a lower refractive index than the first cladding (12). The first cladding (12) is doped with light attenuating dopant so that a concentration of the light attenuating dopant in the first cladding (12) increases from an inner surface of the first cladding (12) toward an outer surface of the first cladding (12).
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: December 10, 2013
    Assignee: Mitsubishi Cable Industries, Ltd.
    Inventors: Haruo Ooizumi, Masatoshi Tanaka, Masayoshi Hachiwaka, Takaharu Kinoshita, Mamoru Hashimoto
  • Publication number: 20130280585
    Abstract: A plurality of laminar battery cells and a plurality of plates are alternately disposed and stacked one on top of another. Each battery cell is fixed to an adjacent plate. A rectangle with a minimum area internally including the plate also internally includes the battery cell having a positive electrode tab and a negative electrode tab that are drawn out from the battery cell, when the battery stack is viewed in a stacked direction.
    Type: Application
    Filed: April 17, 2013
    Publication date: October 24, 2013
    Inventors: Rie MORISAKI, Yukinori MIYAGAWA, Masatoshi TANAKA
  • Patent number: 8464392
    Abstract: The present invention provides an electric vacuum cleaner which can reliably absorb vibration accompanying driving of an electric blowing part. An electric blowing part 11 which is driven to generate a negative pressure is housed in a main body case 5. An energizing means 29 which energizes the electric blowing part 11 from the front side toward the center of gravity G of the electric blowing part 11 in a side view, and an energizing means 30 which energizes the electric blowing part 11 from the rear side, are provided on the main body case 5. Vibration accompanying driving of the electric blowing part 11 can be reliably absorbed by energizing of springs of the energizing means 29 and 30, and vibration can be isolated from the main body case 5.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: June 18, 2013
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Consumer Electronics Holdings Corporation, Toshiba Home Appliances Corporation
    Inventors: Tsuyoshi Sato, Masatoshi Tanaka, Yoshiyuki Iwata
  • Patent number: 8330113
    Abstract: A collimator, a radiological imaging apparatus and a nuclear medicine diagnosis apparatus which are able to improve the sensitivity are provided. The radiological imaging apparatus has a collimator 11 disposed to oppose a radiological detection device 12 and having through-holes 11a for passing to the radiological detection device 12 gamma rays in a specified direction out of those radiated from an object to be examined. The collimator 11 is produced by mutually coupling a plurality of metal tubular members 11A each having the through-hole 11a with the help of a bonding agent S in alignment with a plurality of detectors 12a constituting the radiological detection device 12.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: December 11, 2012
    Assignees: Hitachi, Ltd., Hitachi Cable Mec-Tech, Ltd.
    Inventors: Tsuneaki Kawaguchi, Masatoshi Tanaka, Shigeru Kimura, Katsutoshi Tsuchiya, Masami Murayama, Junichi Katogi
  • Publication number: 20120204700
    Abstract: In the process of holding a non-toothed section of a band saw blade between a fixed insertion block and a movable insertion block included in a band saw blade guide device, the movable insertion block is moved while a return allowing unit included in an insertion block moving unit is held in a returnable state, the insertion block moving unit configured to move the movable insertion block toward the fixed insertion block. The band saw blade is firmly held between the fixed insertion block and the movable insertion block. Thereafter, the entirety of the insertion block moving unit, including the return allowing unit, is fixed in an immovable state by a mechanical fixing unit.
    Type: Application
    Filed: October 5, 2010
    Publication date: August 16, 2012
    Applicants: AMADA MACHINE TOOLS CO., LTD., AMADA COMPANY, LIMITED
    Inventors: Toru Tokiwa, Masatoshi Tanaka, Susumu Tsujimoto, Yuji Nagano
  • Patent number: 8111962
    Abstract: An optical fiber connection structure which reduces MPI in the use of an optical fiber with a bend resistance improved by forming holes in the fiber, and a single-mode fiber which reduces MPI are provided. A second cladding portion of a second single-mode fiber 20 includes holes 28, and thus, the second single-mode fiber 20 has low bending loss. A portion of the second single-mode fiber 20 connected to a first single-mode fiber 10a is made solid by filling corresponding portions of the holes 28 over the length L0, and light in a mode LP11 is significantly attenuated in this portion, thereby reducing MPI.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: February 7, 2012
    Assignee: Mitsubishi Cable Industries, Ltd.
    Inventors: Masatoshi Tanaka, Masayoshi Hachiwaka, Haruo Ooizumi
  • Patent number: 8094986
    Abstract: A double clad fiber includes a core, a first cladding provided so as to cover the core, and a second cladding provided so as to cover the first cladding. The second cladding has a plurality of pores extending in a length direction and arranged so as to surround the first cladding. In at least one fiber end, the second cladding has been removed by mechanical processing so that the at least one fiber end is formed by the core and the first cladding.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: January 10, 2012
    Assignee: Mitsubishi Cable Industries, Ltd.
    Inventors: Masatoshi Tanaka, Tetsuya Yamamoto
  • Publication number: 20110233412
    Abstract: A collimator, a radiological imaging apparatus and a nuclear medicine diagnosis apparatus which are able to improve the sensitivity are provided. The radiological imaging apparatus has a collimator 11 disposed to oppose a radiological detection device 12 and having through-holes 11a for passing to the radiological detection device 12 gamma rays in a specified direction out of those radiated from an object to be examined. The collimator 11 is produced by mutually coupling a plurality of metal tubular members 11A each having the through-hole 11a with the help of a bonding agent S in alignment with a plurality of detectors 12a constituting the radiological detection device 12.
    Type: Application
    Filed: January 24, 2008
    Publication date: September 29, 2011
    Inventors: Tsuneaki Kawaguchi, Masatoshi Tanaka, Shigeru Kimura, Katsutoshi Tsuchiya, Masami Murayama, Junichi Katogi
  • Patent number: 8014645
    Abstract: A 1.55 ?m band dispersion shifted optical fiber is provided which has a low loss and low dispersion slope. A core region “a” is heavily doped with GeO2 . A core region “b” is composed of pure SiO2 glass. A cladding section is arranged around the core region. The cladding section has a lot of holes extending in the longitudinal direction of the optical fiber. The holes of the cladding section are not located at random, but have a honeycomb structure composed of regular hexagons which have a side length of ?, and serve as a primitive lattice. The center of the core section has a region having a refractive index higher than that of the periphery of the core section. The core section has the refractive index distribution in which the group velocity dispersion at the operation wavelength of the region becomes the normal dispersion.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: September 6, 2011
    Assignees: Nippon Telegraph and Telephone Corporation, Mitsubishi Cable Industries, Ltd.
    Inventors: Kazunori Suzuki, Satoki Kawanishi, Hirokazu Kubota, Masatoshi Tanaka, Moriyuki Fujita
  • Publication number: 20110176783
    Abstract: An optical fiber (10) includes: a core (11); a first cladding (12) surrounding the core (11) and having a lower refractive index than the core (11); and a second cladding (13) surrounding the first cladding (12) and having a lower refractive index than the first cladding (12). The first cladding (12) is doped with light attenuating dopant so that a concentration of the light attenuating dopant in the first cladding (12) increases from an inner surface of the first cladding (12) toward an outer surface of the first cladding (12).
    Type: Application
    Filed: August 21, 2009
    Publication date: July 21, 2011
    Applicant: MITSUBISHI CABLE INDUSTRIES, LTD.
    Inventors: Haruo Ooizumi, Masatoshi Tanaka, Masayoshi Hachiwaka, Takaharu Kinoshita, Mamoru Hashimoto
  • Publication number: 20110176766
    Abstract: An optical fiber connection structure which reduces MPI in the use of an optical fiber with a bend resistance improved by forming holes in the fiber, and a single-mode fiber which reduces MPI are provided. A second cladding portion of a second single-mode fiber 20 includes holes 28, and thus, the second single-mode fiber 20 has low bending loss. A portion of the second single-mode fiber 20 connected to a first single-mode fiber 10a is made solid by filling corresponding portions of the holes 28 over the length L0, and light in a mode LP11 is significantly attenuated in this portion, thereby reducing MPI.
    Type: Application
    Filed: August 21, 2009
    Publication date: July 21, 2011
    Applicant: MITSUBISHI CABLE INDUSTRIES, LTD.
    Inventors: Masatoshi Tanaka, Masayoshi Hachiwaki, Haruo Ooizumi
  • Publication number: 20110176767
    Abstract: An optical fiber connection structure reducing MPI is provided. An intervening optical fiber 30 having a normalized frequency less than 2.405 and a length greater than or equal to 2 mm and less than or equal to 30 mm is interposed between a single-mode fiber 10a and a second single-mode fiber 20, and the second single-mode fiber 20 and the intervening optical fiber 30 are fused together. While transmission light is input through the first single-mode fiber 10a to the second single-mode fiber 20, a higher order mode is not generated in the second single-mode fiber 20.
    Type: Application
    Filed: August 21, 2009
    Publication date: July 21, 2011
    Applicant: MITSUBISHI CABLE INDUSTRIES, LTD.
    Inventors: Masatoshi Tanaka, Masayoshi Hachiwaka, Haruo Ooizumi
  • Patent number: 7952076
    Abstract: A radiation imaging system is configured by a collimator 30A including a detector 21 with a discrete detection pixel corresponding with a pixel and a plurality of radiation passages 31 and looks into a plurality of detectors 21 through one radiation passage 31 to set a step width of rotation around a rotation center axis X1 only for an angle ?p made by lines provided by connecting a center detector 21 of the radiation passage 31 and the adjacent two detectors 21. In the case of generating a flat plane projection image for one direction, radio-graphing is carried out on a projection image in a plurality of predetermined angle positions (??p, 0, +?p) in the circumferential direction of the rotation center axis X1 and thereby one plane projection image is obtained.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: May 31, 2011
    Assignees: Hitachi, Ltd., National University Corporation Hokkaido University
    Inventors: Katsutoshi Tsuchiya, Tsuneaki Kawaguchi, Yuichi Morimoto, Masatoshi Tanaka, Hiroshi Kitaguchi, Kazuma Yokoi, Takafumi Ishitsu, Naoki Kubo, Nagara Tamaki
  • Publication number: 20100266250
    Abstract: A 1.55 ?m band dispersion shifted optical fiber is provided which has a low loss and low dispersion slope. A core region “a” is heavily doped with GeO2 . A core region “b” is composed of pure SiO2 glass. A cladding section is arranged around the core region. The cladding section has a lot of holes extending in the longitudinal direction of the optical fiber. The holes of the cladding section are not located at random, but have a honeycomb structure composed of regular hexagons which have a side length of ?, and serve as a primitive lattice. The center of the core section has a region having a refractive index higher than that of the periphery of the core section. The core section has the refractive index distribution in which the group velocity dispersion at the operation wavelength of the region becomes the normal dispersion.
    Type: Application
    Filed: May 16, 2003
    Publication date: October 21, 2010
    Inventors: Kazunori Suzuki, Satoki Kawanishi, Hirokazu Kubota, Masatoshi Tanaka, Moriyuki Fujita
  • Publication number: 20100218341
    Abstract: The present invention provides an electric vacuum cleaner which can reliably absorb vibration accompanying driving of an electric blowing part. An electric blowing part 11 which is driven to generate a negative pressure is housed in a main body case 5. An energizing means 29 which energizes the electric blowing part 11 from the front side toward the center of gravity G of the electric blowing part 11 in a side view, and an energizing means 30 which energizes the electric blowing part 11 from the rear side, are provided on the main body case 5. Vibration accompanying driving of the electric blowing part 11 can be reliably absorbed by energizing of springs of the energizing means 29 and 30, and vibration can be isolated from the main body case 5.
    Type: Application
    Filed: November 25, 2008
    Publication date: September 2, 2010
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA CONSUMER ELECTRONICS HOLDINGS CORPORATION, TOSHIBA HOME APPLIANCES CORPORATION
    Inventors: Tsuyoshi Sato, Masatoshi Tanaka, Yoshiyuki Iwata
  • Patent number: 7654543
    Abstract: The invention relates to a vehicle suspension arm supporting structure. A receiving portion 9 is formed integrally on a subframe 5 which is formed of a light metal in such a manner as to extend transversely outwards, and a sheet steel member 15 is connected to the subframe 5 by a bolt or a nut in such a manner as to be situated below the receiving portion 9 of the subframe 5 at a predetermined interval. A base portion 13b of a suspension arm 13 is disposed between the receiving portion 9 of the subframe 5 and the sheet steel member 15, the base portion 13b of the suspension arm 13 is supported on the subframe 5 via a rubber bushing joint 14 by a connecting bolt 16 which vertically passes through the receiving portion 9 of the subframe 5 and the sheet steel member 15, and the receiving portion 9 of the subframe 5 is connected to a side member 4 by the connecting bolt 16.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: February 2, 2010
    Assignee: Daihatsu Motor Co., Ltd.
    Inventors: Masatoshi Tanaka, Yasushi Yoshida
  • Patent number: 7650921
    Abstract: A run-flat tire is provided at its side wall with a side reinforcing rubber layer having a substantially falcate cross section, and a side reinforcing cord layers extending inside and outside along a ply body of a carcass in a radial direction. A radially outer end of the side reinforcing cord layer is sandwiched and terminated between a belt layer and a ply body of the carcass. A radial inner end of the side reinforcing cord layer is terminated in the vicinity of the bead core.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: January 26, 2010
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Masatoshi Tanaka
  • Patent number: 7641382
    Abstract: In a deposited-film formation apparatus or process having the means or steps of evacuating the inside of an inside-evacuatable chamber through an evacuation piping by an evacuation means, feeding a material gas into the chamber while evacuating the inside of the chamber, and applying a high-frequency power to form a deposited film on a substrate disposed inside the chamber, a leak is detected on the basis of a measured value of a temperature sensor which detects the heat of reaction that is generated when the material gas fed into the chamber reacts with oxygen contained in air having entered from the outside, so as to be able to stop the material gas feeding. In deposited-film formation apparatus or processes making use of spontaneously ignitable gases, the leak can quickly be detected when air enters the chamber because of any unexpected accident such as a break of piping.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: January 5, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Izawa, Hiroshi Echizen, Hirokazu Ohtoshi, Masatoshi Tanaka
  • Patent number: 7628830
    Abstract: An electric vacuum cleaner includes a first dust separation device configured to separate sucked dust, a first dust collection section for collecting the separated dust, a second dust separation device configured to separate the dust, a dust removing device configured to remove the dust adhering to the second dust separation device, a second dust collection section for accumulating the removed dust, a partition wall for zoning the first dust collection section and the second dust collection section and an introduction opening for introducing the removed dust into the second dust collection section; the partition wall includes a communication opening for communicating the first dust collection section to the second dust collection section and an opening and closing member for closing either of the introduction opening or the communication opening and switching the closing to the other by rotating, and the opening and closing member closes the introduction opening with a negative pressure by an electric fan and
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: December 8, 2009
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventors: Yasuhiro Ohtsu, Masatoshi Tanaka, Yuji Otsuka, Yukio Machida, Mitsuru Watanabe