Patents by Inventor Isao Watanabe

Isao Watanabe 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: 6928833
    Abstract: A heat exchanger finned tube 10 for use in fabricating a heat exchanger 1 useful as the evaporator for refrigerators or the like wherein a hydrocarbon refrigerant is used. Two tube insertion holes spaced apart from each other are formed in each of plate fins 12, and two straight tube portions 11a of a hairpin tube 11 are inserted through the respective holes of each plate fin to arrange the plate fins 12 in parallel into a plurality of fin groups 13 spaced apart on the straight tube portions 11a longitudinally thereof. The hairpin tube 11 is enlarged with use of a fluid to fixedly fit the plate fins 12 of each tin group 13 around an enlarged tube portion 14 of the hairpin tube 11 and provide a finless part 19 between each pair of adjacent fin groups 13 on each of the straight tube portions 11a. A restrained small-diameter portion 15 is provided in each of the finless parts 19 of each straight tube portion 11a.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: August 16, 2005
    Assignee: Showa Denko K.K.
    Inventors: Isao Watanabe, Shigeo Marugasa
  • Publication number: 20050155207
    Abstract: An improved structure of a gas sensor is provided. The gas sensor includes a hollow housing in which a gas sensing element is disposed, a protective cover installed on an end of the housing, a metallic cover installed on the other end of the housing, and an insulator in which end portions of leads connecting with the gas sensing element are disposed. The insulator is retained at a flange thereof in the housing elastically using a washer. The protective cover is welded at an end thereof to the whole circumference of the end of the housing.
    Type: Application
    Filed: January 4, 2005
    Publication date: July 21, 2005
    Applicant: DENSO CORPORATION
    Inventors: Hirokazu Yamada, Takashi Kojima, Isao Watanabe
  • Patent number: 6915917
    Abstract: A heat insulating container and its manufacturing method is provided. The heat insulating container comprises an inner container and an outer glass container, in which the breakage of the glass containers can be prevented even if a minute flaw is formed on either of the glass containers. The insulating container possesses a superior radiant heat insulating capability. The inner glass container is housed in the outer glass container with a gap in between, which air-gap functions as a heat insulating layer. A radiant heat preventive film containing metal oxide is provided at least either on the outer surface of the inner glass container or on the inner surface of the outer glass container with an intermediate film containing SiO2 in between.
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: July 12, 2005
    Assignee: Thermos K.K.
    Inventors: Isao Watanabe, Takafumi Fujii, Naoho Baba
  • Publication number: 20050147522
    Abstract: The conductive material comprises a first metal material having a melting point of not more than 250° C. and a second metal material having a melting point of not less than 500° C., and is paste at a temperature not more than 250° C. Whereby the conductive material can have much higher conductivity than the resin paste. The conductive material can be used in paste, whereby the conductive material can be buried in the via-hole in the same way as the resin paste.
    Type: Application
    Filed: March 9, 2005
    Publication date: July 7, 2005
    Applicant: FUJITSU LIMITED
    Inventors: Isao Watanabe, Kaoru Hashimoto, Osamu Taniguchi
  • Patent number: 6898961
    Abstract: An improved structure of a gas sensor is provided. The gas sensor includes a hollow housing in which a gas sensing element is disposed, a protective cover installed on an end of the housing, a metallic cover installed on the other end of the housing, and an insulator in which end portions of leads connecting with the gas sensing element are disposed. The insulator is retained at a flange thereof in the housing elastically using a washer. The protective cover is welded at an end thereof to the whole circumference of the end of the housing.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: May 31, 2005
    Assignee: Denso Corporation
    Inventors: Hirokazu Yamada, Takashi Kojima, Isao Watanabe
  • Patent number: 6886248
    Abstract: The conductive material comprises a first metal material having a melting point of not more than 250° C. and a second metal material having a melting point of not less than 500° C., and is paste at a temperature not more than 250° C. Whereby the conductive material can have much higher conductivity than the resin paste. The conductive material can be used in paste, whereby the conductive material can be buried in the via-hole in the same way as the resin paste.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: May 3, 2005
    Assignee: Fujitsu Limited
    Inventors: Isao Watanabe, Kaoru Hashimoto, Osamu Taniguchi
  • Publication number: 20050084633
    Abstract: A heat insulating container is described, including an outer glass container and an inner glass container housed therein with a gap formed in-between as a heat insulating layer. A radiant heat preventive film containing a metal oxide is disposed on at least one of the external surface of the inner container or the internal surface of the outer container, wherein the radiant heat preventive film has a reflectivity of 35% or higher with a wavelength of 15 ?m. When the thickness of the radiant heat preventive film is 3000 ?, the Hall mobility “x” (cm2/V·s) and the carrier concentration “y” (cm?3) of the same satisfy the following formulae: y??5×1020x+2×1021 and y??6×1018x+3×1020. When the thickness of the radiant heat preventive film is 5000 ?, x and y satisfy the following formulae: y??5×1020x+3×1021 and y??6×1018x+7×1020. Such radiant heat preventive films can have high reflectivity.
    Type: Application
    Filed: October 8, 2004
    Publication date: April 21, 2005
    Inventors: Naoho Baba, Takafumi Fujii, Isao Watanabe
  • Publication number: 20040261982
    Abstract: A heat exchanger finned tube 10 for use in fabricating a heat exchanger 1 useful as the evaporator for refrigerators or the like wherein a hydrocarbon refrigerant is used. Two tube insertion holes spaced apart from each other are formed in each of plate fins 12, and two straight tube portions 11a of a hairpin tube 11 are inserted through the respective holes of each plate fin to arrange the plate fins 12 in parallel into a plurality of fin groups 13 spaced apart on the straight tube portions 11a longitudinally thereof. The hairpin tube 11 is enlarged with use of a fluid to fixedly fit the plate fins 12 of each tin group 13 around an enlarged tube portion 14 of the hairpin tube 11 and provide a finless part 19 between each pair of adjacent fin groups 13 on each of the straight tube portions 11a. A restrained small-diameter portion 15 is provided in each of the finless parts 19 of each straight tube portion 11a.
    Type: Application
    Filed: April 22, 2004
    Publication date: December 30, 2004
    Inventors: Isao Watanabe, Shigeo Marugasa
  • Publication number: 20040231967
    Abstract: A switch for electric equipment comprises an operation button (50) arranged at the operation panel side of electric equipment and a plurality of switch bodies (51, 52) adapted to selectively come into contact with a plurality of positions of a front press facet (50P) of the operation button (50) as one of the plurality of positions is depressed, the plurality of positions being disposed oppositely relative to the center of the front press facet (50P). The front press facet (50P) of the operation button (50) is inclined relative to a plane P of arrangement of the switch bodies (51, 52). The front area of the operation button (50) is not reduced when the operation panel side of electric equipment is made to show a low profile so that the user can depress and operate the operation button (50) without difficulty.
    Type: Application
    Filed: March 18, 2004
    Publication date: November 25, 2004
    Inventors: Hiroaki Tada, Isao Watanabe, Kenichi Uchiyama, Satoshi Ibuki
  • Patent number: 6809298
    Abstract: A thermal-insulation container with electric heater comprising an inner container and an outer container, said inner container being housed into the outer container integrally therewith so as to define a closed space separating the same from the outer container comprises a highly-resistive metal oxide film formed on an outer surface of said inner container facing said closed space, and an electrode unit provided on the highly-resistive metal oxide film facing said closed space for applying an electric current thereto.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: October 26, 2004
    Assignee: Thermos K.K.
    Inventors: Naoho Baba, Takafumi Fujii, Isao Watanabe
  • Publication number: 20040111483
    Abstract: An apparatus forwards a communication request, which is directed to a home address of a mobile node and is transmitted from another node via a network, to the network segment to which the mobile node is currently connected. The apparatus includes a unit configured to store event information indicative of occurrence of the communication request from the another node to the mobile node, when the communication request is received in a state in which the mobile node is not connected to the network, and an informing unit configured to executes, based on the stored event information, a process for informing the another node via the network that the mobile node has become communicable, in response to a registration request for registration of the care-of-address, which is transmitted via the network from the mobile node connected to the network segment.
    Type: Application
    Filed: December 3, 2003
    Publication date: June 10, 2004
    Applicant: Kabushiki Kaisha Toshiba
    Inventor: Isao Watanabe
  • Publication number: 20040101289
    Abstract: Providing a reproducing apparatus of an in-car disk player, a method and a program for controlling reproducing apparatus. The reproducing apparatus, which is portable and can be carried home, has reproducing means for reproducing data recorded in a disk-shaped recording medium, a sensor section for detecting the state of a vehicle, and control means for changing a reproducing speed of the reproducing means based on the result detected by the sensor section, and can surely copy data recorded in an optical disk to a recording apparatus such as a hard disk drive apparatus, even inside a vehicle, without an excessive vibration countermeasure such as cushions, by changing a reproduction speed of a disk-shaped recording medium.
    Type: Application
    Filed: November 18, 2003
    Publication date: May 27, 2004
    Applicant: Sony Corporation
    Inventor: Isao Watanabe
  • Patent number: 6737108
    Abstract: A process for producing a MC-type conductive filler includes treating minute metallic particles with a coupling agent, preparing an oil phase of the coupling agent-treated minute metallic particles and a reactive substance A, the reactive substance A directly contacting the metallic particles. Then, an aqueous phase is prepared having a reactive substance B, which is capable of reacting with the reactive substance A, dissolved in water. Thereafter, the oil phase is dispersed in the aqueous phase to form a suspension. In situ reaction of the reactive substances A and B is then caused by applying heat to the suspension or adding a catalyst to the suspension. This forms a coating of a thermosetting insulating resin on the surface of the minute metallic particles. Alternatively, the reactive substance B may not be used.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: May 18, 2004
    Assignee: Fujitsu Limited
    Inventors: Hiroaki Date, Makoto Usui, Isao Watanabe, Yuko Hozumi
  • Publication number: 20040069789
    Abstract: A heat insulating container is provided with an outer vessel 2 and an inner vessel 1 arranged in the outer vessel 2 with a gap 3, at least a bag 4 arranged in the gap 3, and a reinforcement member 10 with a rigidity higher than the composition material of the bag 4, arranged on at least one peripheral side of the bag 4. The reinforcement member 10 extends along the edge portion of the bag 4. The bag 4 is formed into a rectangular shape, and the reinforcement member 10 is arranged along at least two opposite sides of the bag 4. As a protrusion of one of the inner or outer vessels engages with the cavity or the protrusion of the reinforcement member 10 of the bag 4, the bags 4 can be easily inserted into the gap 3.
    Type: Application
    Filed: September 4, 2003
    Publication date: April 15, 2004
    Inventors: Takashi Ohno, Ikuo Miura, Isao Watanabe
  • Publication number: 20040011796
    Abstract: A heat insulating container is described, including an outer glass container and an inner glass container housed therein with a gap formed in-between as a heat insulating layer. A radiant heat preventive film containing a metal oxide is disposed on at least one of the external surface of the inner container or the internal surface of the outer container, wherein the radiant heat preventive film has a reflectivity of 35% or higher with a wavelength of 15 &mgr;m. When the thickness of the radiant heat preventive film is 3000 Å, the Hall mobility “x” (cm2/V·s) and the carrier concentration “y” (cm−3) of the same satisfy the following formulae: y≧−5×1020x+2×1021 and y≧−6×1018x+3×1020. When the thickness of the radiant heat preventive film is 5000 Å, x and y satisfy the following formulae: y≧−5×1020x+3×1021 and y≧−6×1018x+7×1020.
    Type: Application
    Filed: June 10, 2003
    Publication date: January 22, 2004
    Inventors: Naoho Baba, Takafumi Fujii, Isao Watanabe
  • Publication number: 20030222074
    Abstract: A thermal-insulation container with electric heater comprising an inner container and an outer container, said inner container being housed into the outer container integrally therewith so as to define a closed space separating the same from the outer container comprises a highly-resistive metal oxide film formed on an outer surface of said inner container facing said closed space, and an electrode unit provided on the highly-resistive metal oxide film facing said closed space for applying an electric current thereto.
    Type: Application
    Filed: May 16, 2003
    Publication date: December 4, 2003
    Inventors: Naoho Baba, Takafumi Fujii, Isao Watanabe
  • Publication number: 20030189054
    Abstract: A heat insulating container and its manufacturing method is provided. The heat insulating container comprises an inner container and an outer glass container, in which the breakage of the glass containers can be prevented even if a minute flaw is formed on either of the glass containers. The insulating container possesses a superior radiant heat insulating capability. The inner glass container is housed in the outer glass container with a gap in between, which air-gap functions as a heat insulating layer. A radiant heat preventive film containing metal oxide is provided at least either on the outer surface of the inner glass container or on the inner surface of the outer glass container with an intermediate film containing SiO2 in between.
    Type: Application
    Filed: April 1, 2003
    Publication date: October 9, 2003
    Inventors: Isao Watanabe, Takafumi Fujii, Naoho Baba
  • Publication number: 20030135997
    Abstract: The conductive material comprises a first metal material having a melting point of not more than 250° C. and a second metal material having a melting point of not less than 500° C., and is paste at a temperature not more than 250° C. Whereby the conductive material can have much higher conductivity than the resin paste. The conductive material can be used in paste, whereby the conductive material can be buried in the via-hole in the same way as the resin paste.
    Type: Application
    Filed: January 23, 2003
    Publication date: July 24, 2003
    Applicant: Fujitsu Limited
    Inventors: Isao Watanabe, Kaoru Hashimoto, Osamu Taniguchi
  • Publication number: 20030101569
    Abstract: A heater is inserted into an inside chamber of a sensor element until a tip end of the heater is surely brought into contact with a bottom surface of the inside chamber. Next, a metallic holder is attached on an outside surface of the heater. Then, the metallic holder is slid along the outside surface of the heater toward the bottom surface of the sensor element to engage the metallic holder with an edge of the sensor element.
    Type: Application
    Filed: January 2, 2003
    Publication date: June 5, 2003
    Applicant: DENSO CORPORATION
    Inventors: Isao Watanabe, Michihiro Yamakawa, Masanori Fukutani
  • Publication number: 20030084289
    Abstract: In an authentication apparatus, at least one authentication program corresponding to an authentication method of the user's choice executes an authentication process based on data received from a sensor unit and personal feature data. An authentication determination program calculates a comprehensive authentication level value of such an authentication method on the basis of authentication evaluation data. When the calculated comprehensive authentication level value has exceeded the predetermined authentication level, the authentication determination program determines that authentication has succeeded; otherwise, the program determines that authentication has failed.
    Type: Application
    Filed: October 3, 2002
    Publication date: May 1, 2003
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Isao Watanabe