Patents by Inventor Dai Terasawa

Dai Terasawa 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: 20140094677
    Abstract: There is provided a biological information detecting apparatus including: an apparatus main body; a pair of heart rate detecting parts provided on the apparatus main body, each of the heart rate detecting parts having an electrode in contact with a biological surface; a strip-shaped fixing band attached to the apparatus main body and configured to fix the apparatus main body and the pair of heart rate detecting parts to a body; free rings provided to be slidable along a longitudinal direction of the fixing band; and joining parts configured to join the pair of heart rate detecting parts and the free rings, wherein the pair of heart rate detecting parts and the free rings are joined through protrusions and recesses.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 3, 2014
    Applicant: Seiko Instruments Inc.
    Inventors: Hideki OKUDA, Teruo KATO, Dai TERASAWA
  • Publication number: 20130096412
    Abstract: A heartbeat measurement device includes a device main body, a heartbeat detection portion, formed integrally with the device main body, which has electrodes that come into contact with a biological surface, and a fixing band, formed in a belt shape, which fixes the device main body and the heartbeat detection portion to a human body. Both ends of the fixing band in a long-side direction are detachably installed on the device main body through an engagement portion constituted by a hook portion and an engaged portion.
    Type: Application
    Filed: September 27, 2012
    Publication date: April 18, 2013
    Inventors: Takahiro KANEKO, Teruo KATO, Dai TERASAWA, Hideki OKUDA
  • Publication number: 20130096411
    Abstract: Provided is a heartbeat measurement device including a main body portion, a heartbeat detection portion, formed integrally the main body portion, which has electrodes that come into contact with a biological surface, a fixing band, formed so as to cover the main body portion and the heartbeat detection portion, which fixes the main body portion and the heartbeat detection portion to a user.
    Type: Application
    Filed: September 27, 2012
    Publication date: April 18, 2013
    Inventors: Teruo KATO, Dai TERASAWA, Hideki OKUDA
  • Patent number: 8256071
    Abstract: A main body holder has a base wall with a through-hole, a holding portion, and a pivotally attached clip piece. A stopper member is movably disposed within the base wall through-hole for movement between a restricting position and a releasing position. In the restricting position, the stopper member projects from the base wall and is configured to engage and securely hold the main body of a portable apparatus on the holding portion so that the apparatus main body is only partially disposed over the base wall through-hole in a state in which the apparatus main body is fully received by the holding portion. In the releasing position, the stopper member extends into the through-hole and does not project from the base wall so that the apparatus main body is allowed to be slid relative to the holding portion. An urging member urges the clip piece into contact with the holding portion and urges the stopper member to the restricting position.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: September 4, 2012
    Assignee: Seiko Instruments Inc.
    Inventors: Hideki Okuda, Teruo Kato, Dai Terasawa
  • Publication number: 20090094806
    Abstract: To provide an apparatus main body holder of a portable apparatus having a simple constitution and a high reliability of holding an apparatus main body in a state of being mounted to a mounted object and in a state of not being mounted to the mounted object. An apparatus main body holder to and from which an apparatus main body of a pedometer is held insertably and detachably including a holder main body, a clip piece, a stopper member, and a torsional coil spring. The holder main body includes a base wall, and a holding portion provided on a surface side of the wall. The holding portion holds an apparatus main body insertably and detachably inserted thereto to slide along a surface of the base wall. The clip piece is pivotably attached to the holder main body.
    Type: Application
    Filed: October 2, 2008
    Publication date: April 16, 2009
    Inventors: Hideki Okuda, Teruo Kato, Dai Terasawa
  • Patent number: 6748631
    Abstract: To provide a wrist mounting type electronic apparatus facilitating attachment and detachment thereof. The wrist mounting type electronic apparatus is constituted by a main body bent substantially in an L-like shape and straps comprising a hard material. An inserting portion is provided at a front end of the strap on one side and is inserted into an inserted portion of the pivotable strap on other side. The inserted portion is penetrated with a bar member which is engaged with a small diameter hole of the inserting portion. Thereby, the wrist mounting type electronic apparatus can be mounted to the wrist. A hinge of the strap is provided with a coil spring and a state of opening the strap relative to a cabinet of the main body is maintained so far as the strap is not engaged.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: June 15, 2004
    Assignee: Seiko Instruments Inc.
    Inventors: Katsunobu Iguchi, Dai Terasawa, Nobuhide Matsumoto, Yoshinori Bito, Takashi Ito, Haruo Hashimoto, Hiroshi Odagiri
  • Patent number: 6599009
    Abstract: The rotary vessel is structured having a function movable generally vertical relative to a plane of a wristwatch case, and divided with a plurality of stop points in a movable range in a vertical direction, i.e. a stop point for securing stop stability of rotation and a stop point for rotating the rotary vessel. Due to this, in the case that the rotary vessel is in a rotatable state, rotation torque can be minimized.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: July 29, 2003
    Assignee: Seiko Instruments Inc.
    Inventors: Dai Terasawa, Toshiaki Kume, Masayuki Kimura
  • Publication number: 20030116596
    Abstract: A wearable electronic device is provided which can prevent the main body of the device from making swinging movement relative to its rigid band portion. The wearable electronic device is provided with: an electronic device main body; a rigid band allowing the electronic device main body to be worn on a neck-like portion; a pivotal coupling mechanism for coupling the rigid band to a casing of the electronic device main body for pivoting movement in two directions between a closed position for surrounding the neck-like portion and an open position for allowing detachment thereof from the neck-like portion, in cooperation with the casing of the electronic device main body. The pivotal coupling mechanism includes an elastic biasing member biasing the rigid band from the closed position toward the open position, and a locking mechanism for open position which locks the rigid band in the open position when the rigid band is in the open position.
    Type: Application
    Filed: December 16, 2002
    Publication date: June 26, 2003
    Inventor: Dai Terasawa
  • Publication number: 20030099165
    Abstract: A rotary bezel (1) is stopped at a lower stop point by a positioning elastic member (105) held by a positioning groove (12) of the rotary bezel (1) and a positioning projection (25) of a case body (2). At this moment, a rotation stop portion (43) provided to a rotation restricting ring (4) is engaged with a single or a plurality of rotation stop holes (23) perforated to the case body (2) by which the rotation restricting ring (4) cannot be rotated. By pulling the rotary bezel (1) to move in a vertical direction, a positioning elastic member (105) held by a positioning groove (12) of the rotary bezel (1) is bent and rides over the positioning projection (25) of the case body (2). At this moment, the positioning elastic member (105) held by positioning groove (12) of the rotary bezel (1) interferes with a positioning projection upper inclined face (27) of the case body (2) by which the rotary bezel (1) can be stopped at an upper stop point and at the upper stop point, the rotary bezel (1) can stably be rotated.
    Type: Application
    Filed: February 13, 2002
    Publication date: May 29, 2003
    Inventor: Dai Terasawa
  • Patent number: 6542441
    Abstract: A circular case battery hole is formed in the case back right below a battery accommodation hole, and in a portion of the outer surface around the battery hole is provided a battery cover detachment recess portion. A battery cover is formed of a disklike elastic sealing member having a large-diameter portion at its watch case interior side and a small-diameter portion at its outer side, and a disklike hard member made of a metal, a plastic, or the like joined to outer side of the elastic sealing member. The battery cover is attached to the case battery hole portion in such a manner that the small-diameter portion of the elastic sealing member has a horizontal fitting margin relative to the case battery hole. In the battery cover of this embodiment, the elastic sealing member has a fitting recess portion at its outer side while the hard member has an fitting projection portion at its internal side, and the elastic sealing member and the hard member are joined by projection-recess fitting.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: April 1, 2003
    Assignee: Seiko Instruments Inc.
    Inventor: Dai Terasawa
  • Patent number: 6461125
    Abstract: An air chamber device has an air pump having a first air discharge valve, an air chamber connected to the air pump for receiving air discharged by the first air discharge valve, and a second air discharge valve for discharging air from the air chamber. The air pump has an elastic body having an upper elastic part and a lower elastic part connected together to define an interior space. At least one through-hole is formed in the upper elastic part for introducing ambient air into the interior space.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: October 8, 2002
    Assignee: Seiko Instruments Inc.
    Inventors: Dai Terasawa, Hiroki Hanawa
  • Publication number: 20020104200
    Abstract: To provide a wrist mounting type electronic apparatus facilitating attachment and detachment thereof. The wrist mounting type electronic apparatus is constituted by a main body bent substantially in an L-like shape and straps comprising a hard material. An inserting portion is provided at a front end of the strap on one side and is inserted into an inserted portion of the pivotable strap on other side. The inserted portion is penetrated with a bar member which is engaged with a small diameter hole of the inserting portion. Thereby, the wrist mounting type electronic apparatus can be mounted to the wrist. A hinge of the strap is provided with a coil spring and a state of opening the strap relative to a cabinet of the main body is maintained so far as the strap is not engaged.
    Type: Application
    Filed: December 12, 2001
    Publication date: August 8, 2002
    Inventors: Katsunobu Iguchi, Dai Terasawa, Nobuhide Matsumoto, Yoshinori Bito, Takashi Ito, Haruo Hashimoto, Hiroshi Odagiri
  • Publication number: 20020089193
    Abstract: When a slide piece is fitted to a slide groove, the slide piece can be slid. When a latch is caught by recesses, a position of the slide piece in the slide groove is stabilized. Since the slide groove is provided with a plurality of the recesses at constant intervals, among the recesses, the recess at a most suitable position is selected and the latch is caught by the recess. The slide piece is integral with the inserting portion of a strap and therefore, the position of the slide piece is determined so as to adjust a length of the strap around the wrist. Further, the latch is only urged by a spring and the recess is not so deep as to engage the latch and therefore, when the slide piece is pushed or pulled by exerting force, the position of the slide piece can also be changed.
    Type: Application
    Filed: December 20, 2001
    Publication date: July 11, 2002
    Inventors: Dai Terasawa, Katsunobu Iguchi, Nobuhide Matsumoto, Yoshinori Bito
  • Patent number: 6418086
    Abstract: The problem is to provide a battery lid structure for a timepiece case, which does not require complicate machining, such as for slant surfaces and stoppers, in an inner surface of a back lid or case bottom surface, and can reduce a thickness. The back lid has, at an immediately underneath the battery accommodating hole, a different-shaped battery hole having a pair of larger-diameter arcs and a pair of smaller-diameter arcs in an alternate fashion. A battery lid is fitted in the battery hole in a manner described later.
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: July 9, 2002
    Assignee: Seiko Instruments Inc.
    Inventors: Dai Terasawa, Takasuke Yokote
  • Publication number: 20010040840
    Abstract: The rotary vessel is structured having a function movable generally vertical relative to a plane of a wristwatch case, and divided with a plurality of stop points in a movable range in a vertical direction, i.e. a stop point for securing stop stability of rotation and a stop point for rotating the rotary vessel. Due to this, in the case that the rotary vessel is in a rotatable state, rotation torque can be minimized.
    Type: Application
    Filed: March 28, 2001
    Publication date: November 15, 2001
    Inventors: Dai Terasawa, Toshiaki Kume, Masayuki Kimura
  • Publication number: 20010036131
    Abstract: A wristwatch case is structured by an outer case and an inner case mounting a movement. The inner case is structured movable vertical to a plane to provide, in a vertical movable range, a stop point where the inner case is allowed to rotate and a stop position inhibiting rotation. In a state the inner case is rotatable, the inner case can be rotated to an angle easy to see.
    Type: Application
    Filed: March 28, 2001
    Publication date: November 1, 2001
    Inventors: Dai Terasawa, Shoichi Watase
  • Publication number: 20010012577
    Abstract: The problem is to provide a battery lid structure for a timepiece case, which does not require complicate machining, such as for slant surfaces and stoppers, in an inner surface of a back lid or case bottom surface, and can reduce a thickness. The back lid has, at an immediately underneath the battery accommodating hole, a different-shaped battery hole having a pair of larger-diameter arcs and a pair of smaller-diameter arcs in an alternate fashion. A battery lid is fitted in the battery hole in a manner described later.
    Type: Application
    Filed: January 23, 2001
    Publication date: August 9, 2001
    Inventors: Dai Terasawa, Takasuke Yokote
  • Publication number: 20010006491
    Abstract: A circular case battery hole is formed in the case back right below a battery accommodation hole, and in a portion of the outer surface around the battery hole is provided a battery cover detachment recess portion. A battery cover is formed of a disklike elastic sealing member having a large-diameter portion at its watch case interior side and a small-diameter portion at its outer side, and a disklike hard member made of a metal, a plastic, or the like joined to outer side of the elastic sealing member. The battery cover is attached to the case battery hole portion in such a manner that the small-diameter portion of the elastic sealing member has a horizontal fitting margin relative to the case battery hole. In the battery cover of this embodiment, the elastic sealing member has a fitting recess portion at its outer side while the hard member has an fitting projection portion at its internal side, and the elastic sealing member and the hard member are joined by projection-recess fitting.
    Type: Application
    Filed: December 8, 2000
    Publication date: July 5, 2001
    Inventor: Dai Terasawa
  • Patent number: 6175729
    Abstract: A wrist band for a device main body containing communication circuits, having a first wrist band at least partially covering a first antenna plate, a second wrist band at least partially covering a second antenna plate, and a clasp device including a contact mechanism for electrically connecting the first antenna plate and the second antenna plate to form a loop-like antenna when the second wrist band and first wrist band are clasped. The clasp device is releasable and has a three-fold stricture. The clasp device includes a clasp lower plate having a base end portion fixed to the first wrist band, a clasp intermediate plate connected to the clasp lower plate, a clasp upper box connected to the clasp intermediate plate and fixed to the second wrist band and a clasping lock mechanism that fixes the clasp upper box to the clasp lower plate when the clasp intermediate plate is rotated and overlapped onto the clasped lower plate.
    Type: Grant
    Filed: March 24, 1998
    Date of Patent: January 16, 2001
    Assignees: Seiko Epson Corporation, Seiko Instruments Inc.
    Inventors: Zhujun He, Tomozumi Saruwatari, Dai Terasawa