Patents by Inventor Eiji Nagasaki

Eiji Nagasaki 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: 20220070344
    Abstract: A method of manufacturing an imaging module is disclosed. The method includes: producing a housing of the imaging module, the producing including forming a through hole in a part of the housing to connect outer/inner surfaces of the housing; applying an adhesive to the outer surface of the housing in a position where a lens barrel of the imaging module is to be attached, the adhesive having at least a property of being cured by a heat treatment; attaching the lens barrel to the housing with the applied adhesive; curing the adhesive by applying a heat treatment to the housing to which the lens barrel has been attached; and sealing, after the heat treatment, an opening of the through hole with a sealing member such that the opening on the outer surface of the housing is covered by the sealing member.
    Type: Application
    Filed: July 7, 2021
    Publication date: March 3, 2022
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yasutaka MATSUMOTO, Masayuki YOSHIE, Eiji NAGASAKI
  • Patent number: 8810920
    Abstract: A lens barrel (3) comprises a drive frame (30) and a first lens frame (50). The first lens frame (50) has first to third cam followers (54a to 54c) that are respectively inserted into first to third outer cam grooves (34a to 34c), and first and second auxiliary pins (55a and 55b) disposed so as to be able to come into contact with first and second auxiliary grooves (35a and 35b). When viewed in the Y axis direction, the first and second auxiliary pins (55a and 55b) are disposed between the first to third cam followers (54a to 54c) in the peripheral direction. The positions of the first and second auxiliary pins (55a and 55b) are offset from the positions of the first to third cam followers (54a to 54c) in the Y axis direction.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: August 19, 2014
    Assignee: Panasonic Corporation
    Inventors: Shinichi Iwasaki, Keiji Sakamoto, Eiji Nagasaki, Kenji Sasaki, Fumio Shinano
  • Patent number: 8441572
    Abstract: To produce a subject's image on an imager as accurately as possible, a technique that is effectively applicable to the process of assembling an optical system is provided. An imaging device includes: an imager; a plate member, to which the imager is attached; and a holding member configured to hold the plate member. The plate member has a first portion, through which at least one fixing hole has been cut, and a second portion, to which the imager is attached and through which at least one adjusting hole has been cut. The plate member is held by the holding member using a number of fastening members to be introduced through the at least one fixing hole and the at least one adjusting hole. When the first portion is fixed on the holding member, the fastening member that is introduced through the at least one adjusting hole adjusts the relative position of the second portion to the holding member.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: May 14, 2013
    Assignee: Panasonic Corporation
    Inventors: Akio Konishi, Koichiro Hirabayashi, Keiji Sakamoto, Daisuke Ito, Eiji Nagasaki
  • Publication number: 20130016434
    Abstract: A lens barrel (3) comprises a drive frame (30) and a first lens frame (50). The first lens frame (50) has first to third cam followers (54a to 54c) that are respectively inserted into first to third outer cam grooves (34a to 34c), and first and second auxiliary pins (55a and 55b) disposed so as to be able to come into contact with first and second auxiliary grooves (35a and 35b). When viewed in the Y axis direction, the first and second auxiliary pins (55a and 55b) are disposed between the first to third cam followers (54a to 54c) in the peripheral direction. The positions of the first and second auxiliary pins (55a and 55b) are offset from the positions of the first to third cam followers (54a to 54c) in the Y axis direction.
    Type: Application
    Filed: August 10, 2011
    Publication date: January 17, 2013
    Applicant: Panasonic Corporation
    Inventors: Shinichi Iwasaki, Keiji Sakamoto, Eiji Nagasaki, Kenji Sasaki, Fumio Shinano
  • Publication number: 20110115975
    Abstract: To produce a subject's image on an imager as accurately as possible, a technique that is effectively applicable to the process of assembling an optical system is provided. An imaging device includes: an imager; a plate member, to which the imager is attached; and a holding member configured to hold the plate member. The plate member has a first portion, through which at least one fixing hole has been cut, and a second portion, to which the imager is attached and through which at least one adjusting hole has been cut. The plate member is held by the holding member using a number of fastening members to be introduced through the at least one fixing hole and the at least one adjusting hole. When the first portion is fixed on the holding member, the fastening member that is introduced through the at least one adjusting hole adjusts the relative position of the second portion to the holding member.
    Type: Application
    Filed: July 9, 2009
    Publication date: May 19, 2011
    Inventors: Akio Konishi, Koichiro Hirabayashi, Keiji Sakamoto, Daisuke Ito, Eiji Nagasaki
  • Patent number: 6923402
    Abstract: A tape guide post mechanism for guiding running of a tape includes: a post arm, the post arm including a tape guide post, around which the tape is looped at a predetermined angular distance, and which guides running of the tape, and a hole; an arm shaft which engages with the hole and rotatably supports the post arm, wherein an external side surface of the arm shaft is in contact with the hole at at least two points in the vicinity of an upper opening of the hole and at at least two points in the vicinity of a lower opening of the hole.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: August 2, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Eiji Nagasaki, Akio Konishi
  • Patent number: 6863232
    Abstract: A tape tension controlling mechanism of a magnetic recording/reproducing apparatus for controlling a tension of a magnetic tape includes: a reel bed; a reel bed drum; a tension post; a tension arm rotatably supported by a tension arm shaft; an urging element; a tension band having an engagement portion; and a band fixing screw having a threaded portion at one end thereof and a head portion at the other end, the band fixing screw further having, between the threaded portion and the head portion, an intermediate shaft portion for engagement with the engagement portion of the tension band, wherein a longitudinal center line of the intermediate shaft portion is shifted from the longitudinal center line of the threaded portion, and a pitch P of a thread of the threaded portion and a longitudinal length L of the intermediate shaft portion have a relationship of L>P/2.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: March 8, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Eiji Nagasaki, Akio Konishi
  • Patent number: 6755333
    Abstract: A tape guide post mechanism for guiding running of a tape is provided. The tape guide post mechanism includes a post arm, the post arm including a tape guide post, around which the tape is looped, and which guides running of the tape, and a hole. The tape guide post mechanism further includes an arm shaft which engages with the hole and rotatably supports the post arm. The arm shaft has an elastic portion which presses a portion of the post arm. As a result a small sized, inexpensive tape guide post mechanism, which has a simple structure, in which the slant of each element is accurately controlled, and which achieves decreases in size and cost of the magnetic recording/reproducing apparatus, can be obtained.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: June 29, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Eiji Nagasaki, Akio Konishi, Koichiro Hirabayashi
  • Publication number: 20020195517
    Abstract: A tape guide post mechanism for guiding running of a tape includes: a post arm, the post arm including a tape guide post, around which the tape is looped at a predetermined angular distance, and which guides running of the tape, and a hole; an arm shaft which engages with the hole and rotatably supports the post arm, wherein an external side surface of the arm shaft is in contact with the hole at at least two points in the vicinity of an upper opening of the hole and at at least two points in the vicinity of a lower opening of the hole.
    Type: Application
    Filed: May 31, 2002
    Publication date: December 26, 2002
    Inventors: Eiji Nagasaki, Akio Konishi
  • Publication number: 20020195475
    Abstract: A tape guide post mechanism for guiding running of a tape includes: a post arm, the post arm including a tape guide post, around which the tape is looped, and which guides running of the tape, and a hole; an arm shaft which engages with the hole and rotatable supports the post arm, wherein the arm shaft has an elastic portion which presses a portion of the post arm.
    Type: Application
    Filed: May 31, 2002
    Publication date: December 26, 2002
    Inventors: Eiji Nagasaki, Akio Konishi, Koichiro Hirabayashi
  • Publication number: 20020179761
    Abstract: A tape tension controlling mechanism of a magnetic recording/reproducing apparatus for controlling a tension of a magnetic tape includes: a reel bed; a reel bed drum; a tension post; a tension arm rotatably supported by a tension arm shaft; an urging element; a tension band having an engagement portion; and a band fixing screw having a threaded portion at one end thereof and a head portion at the other end, the band fixing screw further having, between the threaded portion and the head portion, an intermediate shaft portion for engagement with the engagement portion of the tension band, wherein a longitudinal center line of the intermediate shaft portion is shifted from the longitudinal center line of the threaded portion, and a pitch P of a thread of the threaded portion and a longitudinal length L of the intermediate shaft portion have a relationship of L>P/2.
    Type: Application
    Filed: May 30, 2002
    Publication date: December 5, 2002
    Inventors: Eiji Nagasaki, Akio Konishi
  • Patent number: 6205006
    Abstract: A magnetic recording and reproducing apparatus which allows a reduction in the necessary space by attaching a rotary head cylinder unit (5) onto a chassis 6 through leaf springs (23) using set screws (22). The rotary head cylinder unit (5) can be fixed onto the chassis (6) with a certain load without causing distortion of the rotary head cylinder unit. Integration of two or more leaf springs (131) improves efficiency in assembling the apparatus and reduces the number of components.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: March 20, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Koichiro Hirabayashi, Shigeo Ueda, Eiji Nagasaki, Keishi Iwasaki
  • Patent number: 6073826
    Abstract: A magnetic recording and reproducing apparatus enabling to optimal adjustment of the tilt of a capstan shaft against a chassis by means of a simple structure so as to realize stable tape transport. A housing (9) is fixed onto a chassis (6) by tightening a first fastening screw (14) and a second fastening screw (15). Then, the degree of rotation of an adjusting screw (16) is varied in order to accurately optimize the tilt of a capstan shaft (8).
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: June 13, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Eiji Nagasaki, Koichiro Hirabayashi
  • Patent number: 5636080
    Abstract: The invention is concerned with a magnetic recording/playback apparatus in which a magnetic tape is pulled out from a tape cassette and wound around a cylindrical rotary head cylinder, having a rotary head built therein, over a predetermined angle to record/playback signals through the rotary head, and more particularly, with a tape guide post driving mechanism, a pinch roller pressing mechanism and a tension serve mechanism. Specifically, the invention provides a tape guide post driving device which can reduce the size, weight and thickness of the apparatus by ensuring a large angle of thickness of the apparatus by ensuring a large angle of rotation of a rotating member, which includes a tension arm, in a direct manner. Also, the invention realizes a pinch roller pressing mechanism in which a sufficient stroke can be obtained even when a cam gear is reduced in its diameter and can provide a sufficient stroke even with a small amount of rotation.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: June 3, 1997
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Akio Konishi, Hideaki Yoshio, Tetsuki Asaoka, Yoshitada Moriyasu, Hiroshi Kurumatani, Sigeo Ueda, Takeshi Syuuke, Eiji Nagasaki
  • Patent number: 5490019
    Abstract: The invention is concerned with a magnetic recording/playback apparatus in which a magnetic tape is pulled out from a tape cassette and wound around a cylindrical rotary head cylinder, having a rotary head built therein, over a predetermined angle to record/playback signals through the rotary head, and more particularly, with a tape guide post driving mechanism, a pinch roller pressing mechanism and a tension servo mechanism. Specifically, the invention provides a tape guide post driving device which can reduce the size, weight and thickness of the apparatus by ensuring a large angle of rotation of a rotating member, which includes a tension arm, in a direct manner. Also, the invention realizes a pinch roller pressing mechanism in which a sufficient stroke can be obtained even when a cam gear is reduced in its diameter and can provide a sufficient stroke even with a small amount of rotation.
    Type: Grant
    Filed: December 6, 1994
    Date of Patent: February 6, 1996
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Akio Konishi, Hideaki Yoshio, Tetsuki Asaoka, Yoshitada Moriyasu, Hiroshi Kurumatani, Sigeo Ueda, Takeshi Syuuke, Eiji Nagasaki