Patents by Inventor Jun Takeda

Jun Takeda 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: 6840795
    Abstract: There is provided a connector which is capable of routing a flat cable in a desired arbitrary direction and at the same time preventing the flat cable from being broken. A concave portion is formed in a housing, and a convex portion is formed on a cable-holding member for being slidably fitted in the concave portion. Slits are formed in the concave portion, and projections to be engaged with the slits are formed on the cable-holding member. Thus, directions of rotations of the cable-holding member are restricted such that the cable-holding member can rotate only about a first axis extending in a direction of width of the flat cable and a second axis orthogonal to the first axis and extending in a direction of insertion of the flat cable.
    Type: Grant
    Filed: July 11, 2003
    Date of Patent: January 11, 2005
    Assignee: Japan Aviation Electronics Industry, Limited
    Inventors: Jun Takeda, Yuichi Koreeda
  • Patent number: 6814497
    Abstract: An optical fiber connector (100), which is used for interconnecting ends of optical fibers (200) together with a splice device or a similar device, comprises a connector body (10) and a protector (50), which is movably or slidably held by the connector body (10). The connector body (10) is provided with an arranging portion (23), which is separated from and independent of the protector (50). The arranging portion (23) arranges the optical fibers (200) so that the arrangement of the optical fibers (200) falls within a single closed predetermined area in an XZ plane perpendicular to a Y-direction, wherein the single closed predetermined area has a first area size in the XZ plane. The protector (50) is provided with a front end surface (52a), which is formed with a second opening (54). The second opening (54) has a second area size in the XZ plane, which is larger than the first area size.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: November 9, 2004
    Assignee: Japan Aviation Electronics Industry, Limited
    Inventors: Jun Takeda, Yuichi Koreeda
  • Publication number: 20040184740
    Abstract: In an optical connector including an optical connector plug holding a first optical fiber and an optical connector plug holding a second optical fiber, the optical connector plugs cooperates with each other to obtain a connected state in which exposed longitudinal ends of the first and the second optical fibers are brought into contact with each other. The first optical fiber includes a long fiber portion and a short fiber portion higher in breakage resistance than the long fiber portion. One of the longitudinal ends of the short fiber is fused to one of longitudinal ends of the long fiber portion. Another of the longitudinal ends of the short fiber portion is exposed to serve as one of the exposed longitudinal ends.
    Type: Application
    Filed: March 16, 2004
    Publication date: September 23, 2004
    Inventors: Go Kaneko, Akihiro Onogawa, Yuichi Koreeda, Jun Takeda
  • Publication number: 20040081419
    Abstract: An optical connection adapter (100) for use in splicing optical fibers (300) is disclosed. The adapter (100) comprises a holding assembly (110) and two shutter members (160). The holding assembly (110) has a passage way (136) for positioning and holding each pair of optical fibers (300) upon the splicing. The passage way (136) extends between end portions (112) of the holding assembly (110) and is positioned at a predetermined position in a Z-direction. Each of the shutter members (160) has a flat shutter plate (161) formed with a slit (162) and is movably fitted to one of the end portions (112) of the holding assembly (110). The flat shutter plate (161) is movable between first and second positions in the Z-direction, wherein the first position is a position where the passage way (163) is blocked off by the flat shutter plate (161), while the second position is a position where the passage way (136) is opened through the slit (162) as seen from the Y-direction.
    Type: Application
    Filed: October 21, 2003
    Publication date: April 29, 2004
    Inventors: Jun Takeda, Yuichi Koreeda
  • Publication number: 20040076378
    Abstract: An optical connector includes a housing including a coupling portion for coupling another optical connector and a blocking component for blocking an optical axis arranged in the coupling portion. The blocking component has a shutter plate blocking the optical axis and being pivotably supported by the housing with a pivot shaft and an elastic portion for normally biasing the shutter plate to a closed position. The shutter plate pivots between a position blocking the optical axis and a position to which the shutter plate is forced to move by the other optical connector when the other optical connector is inserted into the optical connector.
    Type: Application
    Filed: September 22, 2003
    Publication date: April 22, 2004
    Inventors: Jun Takeda, Yuichi Koreeda
  • Publication number: 20040073793
    Abstract: An access point (AP), upon receipt of a request to commence authentication from a station (STA), obtains supplicant identification information (EAP-Response/Identity) from the station (STA) and refers to a rule table (RT) to thereby identify a RADIUS server that is to authenticate the access point (AP).
    Type: Application
    Filed: September 22, 2003
    Publication date: April 15, 2004
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Jun Takeda
  • Publication number: 20040071408
    Abstract: A splice module for optically interconnecting ends of first and second optical fibers (200, 300), each of which has a predetermined radius (Rf). The splice module comprises first and second plates (20, 30), both of which are made of silicon. The first plate 20 is provided with grooves (22). The second plate (30) is arranged on the first plate (20) to cover the grooves (22) and to define passage ways (26) for receiving and aligning the ends of the first and the second optical fibers (200, 300). The passage way (26) has an inscribed circle (28), which has a radius (Rj) larger than the predetermined radius (Rf) by a predetermined difference (D) between 0.5 &mgr;m and 1.0 &mgr;m, both inclusive.
    Type: Application
    Filed: September 22, 2003
    Publication date: April 15, 2004
    Inventors: Jun Takeda, Yuichi Koreeda
  • Publication number: 20040062489
    Abstract: An optical fiber connector (100), which is used for interconnecting ends of optical fibers (200) together with a splice device or a similar device, comprises a connector body (10) and a protector (50), which is movably or slidably held by the connector body (10). The connector body (10) is provided with an arranging portion (23), which is separated from and independent of the protector (50). The arranging portion (23) arranges the optical fibers (200) so that the arrangement of the optical fibers (200) falls within a single closed predetermined area in an XZ plane perpendicular to a Y-direction, wherein the single closed predetermined area has a first area size in the XZ plane. The protector (50) is provided with a front end surface (52a), which is formed with a second opening (54). The second opening (54) has a second are size in the XZ plane, which is larger than the first area size.
    Type: Application
    Filed: September 22, 2003
    Publication date: April 1, 2004
    Inventors: Jun Takeda, Yuichi Koreeda
  • Patent number: 6491442
    Abstract: In an optical fiber connector (1), an outer member (2) holds a portion of an optical fiber (4A) remote from its connecting end which is connectable to a connecting end of a counterpart optical fiber. An aligning member (3) is held by the outer member so as to be movable along the optical fiber. The aligning member carries out positioning of the connecting end of the optical fiber. The aligning member is urged by a spring (5) in a direction to project from the outer member. When connecting the optical fiber to the counterpart optical fiber, the aligning member is moved in a direction opposite to the foregoing direction against an urging force applied by the spring so that the connecting end of the optical fiber is projected from the aligning member.
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: December 10, 2002
    Assignee: Japan Aviation Electronics Industry
    Inventors: Keiji Murakami, Makoto Yamashita, Jun Takeda, Yasuhiro Ando, Nobuo Sato, Mitsuo Usui, Kohsuke Katsura
  • Publication number: 20020085814
    Abstract: In an optical connector, an end face (12) of an optical fiber (11) is brought into contact with an end face of a mating connector in a predetermined direction (13) to achieve connection. The optical connector includes a housing (14) provided with an aligning portion (16) having a hole (15) for insertion of the optical fiber, and a holding portion (21) for holding the optical fiber. The holding portion (21) is movable in the predetermined direction. The holding portion is fixed to the housing with the optical fiber inserted into the hole in the aligning portion and serves to adjust the amount of protrusion of the optical fiber from an end face (22) of the aligning portion. The housing is provided with a guide portion (17) for guiding the optical fiber to the hole in the aligning portion.
    Type: Application
    Filed: December 27, 2001
    Publication date: July 4, 2002
    Inventors: Kenji Otsu, Keiji Murakami, Yuuichi Koreeda, Jun Takeda
  • Patent number: 5541060
    Abstract: The invention relates to the observed tight linkage between DNA polymorphisms in the glucokinase gene (GCK) on the short arm of chromosome 7, and NIDDM in a cohort of sixteen French families having MODY. It further relates to identification of mutations in GCK and their linkage with diabetes in particular families are disclosed. This invention provides the first evidence implicating specific mutations in a gene involved in glucose metabolism in the pathogenesis of NIDDM. The invention further discloses the isolation and characterization of human pancreatic .beta.-cell GCK and a method for searching for mutations that cause early-onset NIDDM. To assess the effect of these mutations on glucokinase activity, a method is disclosed for generating an .alpha.-carbon backbone model for human glucokinase based on the crystal structure of the structurally-related yeast hexokinase B.
    Type: Grant
    Filed: April 22, 1992
    Date of Patent: July 30, 1996
    Assignee: Arch Development Corporation
    Inventors: Graeme I. Bell, Markus Stoffel, Jun Takeda, Nathalie Vionnet, Kazuki Yasuda, Simon J. Pilkis, Habib Zouali, Gilberto Velho, Daniel Cohen, Philippe Froguel
  • Patent number: 4985356
    Abstract: A cloned single-strand DNA comprising nucleotide sequence which encodes human motilin precursor, a cloned double-strand DNA consisting of the single-strand DNA and its complementary single-strand DNA, a fragment of the single- or double-strand DNA, a plasmid, in which the double-strand DNA or its fragment is integrated, as well as a process for the preparation of the single- or double-strand DNA.
    Type: Grant
    Filed: May 6, 1988
    Date of Patent: January 15, 1991
    Assignee: Sanwa Kagaku Kenkyusho Co., Ltd.
    Inventors: Kiichi Sawai, Jun Takeda, Yutaka Seino, Hiroo Imura, Kenichi Tanaka, Haruo Takahashi, Takahiko Mitani, Masayasu Kurono
  • Patent number: 4754611
    Abstract: A controlled atmosphere storage system which is so arranged that a refrigerator and a carbon dioxide generator are connected to each other, and a purifying catalyst, an air preheater, a cooler, a circulating blower and a scrubber are disposed at the downstream side in that order, with the scrubber and the refrigerator being connected, whereby time required for stabilization of combustion may be reduced as compared with conventional systems, and combustion under a low oxygen concentration can be maintained, while flow-out of controlled atmosphere gas outside the refrigerator or entry of atmosphere into the refrigerator can be prevented. Moreover, by forming the carbon dioxide generator in a double wall construction to fill a space with air containing carbon dioxide, heat insulating property is improved for facilitation of combustion under a lower oxygen concentration than in the conventional systems.
    Type: Grant
    Filed: October 28, 1987
    Date of Patent: July 5, 1988
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masato Hosaka, Atsushi Nishino, Jiro Suzuki, Jun Takeda, Takeshi Shimizu, Hiroshi Hamamoto
  • Patent number: 4553812
    Abstract: A penetration assembly for an optical fiber cable includes a pair of axially-aligned cylindrical sleeves surrounding an optical fiber cable. An air-tight seal is formed between the optical fiber cable and the sleeves by means of glass connectors connected to the optical fiber cable and flexible metal connectors connected between the glass connectors and the inside of the sleeves. Each glass connector comprises a plurality of cylindrical sections each having a different coefficient of thermal expansion having a value between that of the optical fiber cable and that of the flexible metal connector. The coefficient of thermal expansion of the glass connector changes in a step-wise manner from the section connected to the optical fiber cable to the section connected to the flexible metal connector.
    Type: Grant
    Filed: June 3, 1983
    Date of Patent: November 19, 1985
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tetsuya Kojiro, Jun Takeda