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).
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Publication number: 20220070344Abstract: 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: ApplicationFiled: July 7, 2021Publication date: March 3, 2022Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Yasutaka MATSUMOTO, Masayuki YOSHIE, Eiji NAGASAKI
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Patent number: 8810920Abstract: 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: GrantFiled: August 10, 2011Date of Patent: August 19, 2014Assignee: Panasonic CorporationInventors: Shinichi Iwasaki, Keiji Sakamoto, Eiji Nagasaki, Kenji Sasaki, Fumio Shinano
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Patent number: 8441572Abstract: 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: GrantFiled: July 9, 2009Date of Patent: May 14, 2013Assignee: Panasonic CorporationInventors: Akio Konishi, Koichiro Hirabayashi, Keiji Sakamoto, Daisuke Ito, Eiji Nagasaki
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Publication number: 20130016434Abstract: 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: ApplicationFiled: August 10, 2011Publication date: January 17, 2013Applicant: Panasonic CorporationInventors: Shinichi Iwasaki, Keiji Sakamoto, Eiji Nagasaki, Kenji Sasaki, Fumio Shinano
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Publication number: 20110115975Abstract: 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: ApplicationFiled: July 9, 2009Publication date: May 19, 2011Inventors: Akio Konishi, Koichiro Hirabayashi, Keiji Sakamoto, Daisuke Ito, Eiji Nagasaki
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Patent number: 6923402Abstract: 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: GrantFiled: May 31, 2002Date of Patent: August 2, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Eiji Nagasaki, Akio Konishi
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Patent number: 6863232Abstract: 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: GrantFiled: May 30, 2002Date of Patent: March 8, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Eiji Nagasaki, Akio Konishi
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Patent number: 6755333Abstract: 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: GrantFiled: May 31, 2002Date of Patent: June 29, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Eiji Nagasaki, Akio Konishi, Koichiro Hirabayashi
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Publication number: 20020195517Abstract: 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: ApplicationFiled: May 31, 2002Publication date: December 26, 2002Inventors: Eiji Nagasaki, Akio Konishi
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Publication number: 20020195475Abstract: 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: ApplicationFiled: May 31, 2002Publication date: December 26, 2002Inventors: Eiji Nagasaki, Akio Konishi, Koichiro Hirabayashi
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Publication number: 20020179761Abstract: 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: ApplicationFiled: May 30, 2002Publication date: December 5, 2002Inventors: Eiji Nagasaki, Akio Konishi
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Patent number: 6205006Abstract: 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: GrantFiled: March 19, 1999Date of Patent: March 20, 2001Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Koichiro Hirabayashi, Shigeo Ueda, Eiji Nagasaki, Keishi Iwasaki
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Patent number: 6073826Abstract: 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: GrantFiled: March 19, 1999Date of Patent: June 13, 2000Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Eiji Nagasaki, Koichiro Hirabayashi
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Patent number: 5636080Abstract: 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: GrantFiled: November 22, 1995Date of Patent: June 3, 1997Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akio Konishi, Hideaki Yoshio, Tetsuki Asaoka, Yoshitada Moriyasu, Hiroshi Kurumatani, Sigeo Ueda, Takeshi Syuuke, Eiji Nagasaki
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Patent number: 5490019Abstract: 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: GrantFiled: December 6, 1994Date of Patent: February 6, 1996Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akio Konishi, Hideaki Yoshio, Tetsuki Asaoka, Yoshitada Moriyasu, Hiroshi Kurumatani, Sigeo Ueda, Takeshi Syuuke, Eiji Nagasaki