Patents by Inventor Akira Nakatsu

Akira Nakatsu 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: 20160079674
    Abstract: Provided is a distributor capable of reducing insertion loss while suppressing a ratio in power distribution among output lines from being changed. The distributor 4 is a distributor that is connected with an input line Lin and output lines Lo1 to Lo3 respectively formed on a dielectric substrate 10 as microstrip lines, and distributes to the output lines Lo1 to Lo3 high frequency power fed from a feeding point to a branching point through the input line Lin. In addition, the distributor 4 is configured to include a stub area 42 that is formed in the input line Lin, is separated from the branching point 41, and has a rectangular shape wider than line widths of a first area La and a second area Lb of the input line Lin.
    Type: Application
    Filed: August 27, 2015
    Publication date: March 17, 2016
    Applicants: Nippon Pillar Packing Co., Ltd., Fujitsu Ten Limited
    Inventors: Takeshi Okunaga, Akira Nakatsu, Eisuke Hayakawa, Hiroaki Yoshitake
  • Publication number: 20150255870
    Abstract: In an antenna, an antenna element interval is reduced without depending on an interval between converters, to widen the range of a phase folding angle to widen a detection angle range. The antenna includes a first antenna element including a feeder line extending from a first converter and a plurality of radiating elements. A second antenna element includes a feeder line extending from a second converter aligned together with the first converter and a plurality of radiating elements. The first and second antenna elements respectively include, at partial line portions of the feeder lines which extend from the converters to closest radiating elements, bend portions which are bent in directions which the bend portions come close to each other. The partial line portions of the first and second antenna elements are disposed so as to be linearly symmetrical about a virtual line.
    Type: Application
    Filed: March 6, 2015
    Publication date: September 10, 2015
    Inventors: Takeshi Okunaga, Akira Nakatsu, Eisuke Hayakawa, Hiroaki Yoshitake
  • Publication number: 20140306846
    Abstract: To provide a microstrip antenna that can radiate electromagnetic waves in two or more different directions while suppressing an increase in manufacturing cost. The microstrip antenna is configured to include: a dielectric substrate 10 that is adapted to be of a folded flat plate shape; two or more radiating patterns 2 for radiating electromagnetic waves; and a connecting pattern 3 for mutually connecting the radiating patterns 2 and feeding electricity from a common feeding point 4 to each of the radiating patterns 2. The radiating patterns 2 and connecting pattern 3 are respectively adapted as microstrip lines formed on the dielectric substrate 10, and the dielectric substrate 10 is folded such that the connecting pattern 3 intersects with a ridge line 5, and has two or more radiating surfaces 10a to 10c of which normal directions are mutually different.
    Type: Application
    Filed: April 14, 2014
    Publication date: October 16, 2014
    Applicant: Nippon Pillar Packing Co., Ltd.
    Inventors: Akira Nakatsu, Koji Onishi
  • Publication number: 20140292606
    Abstract: An antenna device according to an embodiment includes a dielectric substrate, a housing, and an interference prevention unit. On the top surface side of the dielectric substrate, a plurality of antennas is formed, and on the bottom surface side, a ground is formed, each as a conductive thin film pattern, respectively. The housing is formed of a conductive material, and formed to have a shape configured to function as a waveguide, and the top surface side of the housing is bonded to the bottom surface side of the dielectric substrate. The interference prevention unit is formed between the neighboring antennas to include at least a groove provided on the top surface side of the housing and a slit provided on the ground in the portion corresponding to the groove.
    Type: Application
    Filed: December 18, 2013
    Publication date: October 2, 2014
    Applicants: NIPPON PILLAR PACKING CO., LTD., FUJITSU TEN LIMITED
    Inventors: Eisuke HAYAKAWA, Takeshi OKUNAGA, Akira NAKATSU
  • Patent number: 7584709
    Abstract: A sewing frame for extending and holding a sewing cloth is provided with a supported portion, such as a shaft and an engagement portion, which is movably or rotatably supported at front and rear frame side portions of the rectangular support frame at the front and rear ends. A sewing frame drive mechanism includes a support mechanism for supporting the front and rear ends of the sewing frame movably at the front and rear frame side portions of the support frame which is movable in the longitudinal direction but not movable in the lateral direction. The sewing frame drive unit includes left and right protruding portions to the left and right of recess portions of a table, and a front hanging preventive mechanism formed of left and right frame side portions of the support frame movably disposed on the left and right protruding portions in the longitudinal direction.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: September 8, 2009
    Assignee: Kabushikikaisha Barudan
    Inventors: Akira Nakatsu, Keisuke Kasugai
  • Publication number: 20080110384
    Abstract: A sewing frame for extending and holding a sewing cloth is provided with a supported portion, such as a shaft and an engagement portion, which is movably or rotatably supported at front and rear frame side portions of the rectangular support frame at the front and rear ends. A sewing frame drive mechanism includes a support mechanism for supporting the front and rear ends of the sewing frame movably at the front and rear frame side portions of the support frame which is movable in the longitudinal direction but not movable in the lateral direction. The sewing frame drive unit includes left and right protruding portions to the left and right of recess portions of a table, and a front hanging preventive mechanism formed of left and right frame side portions of the support frame movably disposed on the left and right protruding portions in the longitudinal direction.
    Type: Application
    Filed: May 1, 2007
    Publication date: May 15, 2008
    Applicant: KABUSHIKIKAISHA BARUDAN
    Inventors: Akira Nakatsu, Keisuke Kasugai
  • Publication number: 20060138255
    Abstract: A tip end surface of a valve body and a back end surface of an injection nozzle contact each other with pressure by being fastened using a retaining nut and thereby form a metal seal structure to achieve a metal seal. To increase a surface pressure in a seal surface by fastening axial force, conventional recesses around the central axis of a nozzle are replaced so that proximity of a high pressure fuel hole is secured as a seal surface. An outside recess is provided outside of the proximity of the high pressure fuel hole to link with an outer peripheral border of the metal seal structure. Alternatively, a contact surface functioning as a retaining seal surface is added outside of the outside recess to be apart from the proximity of the high pressure fuel hole.
    Type: Application
    Filed: December 22, 2005
    Publication date: June 29, 2006
    Applicant: Denso Corporation
    Inventors: Akira Nakatsu, Senta Tojo, Masayoshi Ito, Mitsuru Ueki
  • Patent number: 6561743
    Abstract: A pellet picking apparatus for separating a pellet adhered on an adhesive sheet from the sheet and picking the pellet thus separated is provided, which prevents the pellet from being damaged during the pellet picking process without lowering the productivity. This apparatus comprises (a) a stage having a surface with which a lower face of the adhesive sheet is contacted; the pellet being adhered on an upper face of the sheet; the stage having a suction hole that pulls down the sheet; the suction hole having a suction end to be contacted with the sheet on the surface of the stage; the stage being movable in a horizontal plane with respect to a specific reference position; and (b) a collet for holding the pellet by a suction force; the collet having a suction end to be contacted with the pellet; the collet being capable of holding the pellet by the suction force at the suction end.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: May 13, 2003
    Assignee: Nec Machinery Corporation
    Inventor: Akira Nakatsu