Patents by Inventor Takashi Terai
Takashi Terai 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: 10901197Abstract: The present disclosure provides a medical observation device to achieve improvement in functionality resulting from switching of optical elements and miniaturization of the device. The medical observation device includes: an imaging optical system configured to capture an image of a subject; an image sensor configured to photoelectrically convert the image of the subject captured by the imaging optical system; and an element holding frame configured to hold a plurality of optical elements and to be capable of being rotated around a rotation shaft. An axial direction of the rotation shaft is set to a direction orthogonal to an optical axis direction that is a direction of a line from the imaging optical system to the image sensor, and the element holding frame is rotated and thus at least one of the optical elements among the plurality of optical elements is positioned on an optical axis.Type: GrantFiled: July 29, 2015Date of Patent: January 26, 2021Assignee: SONY CORPORATIONInventors: Ryuhei Azuma, Hiroshi Mashima, Takashi Kato, Takashi Terai, Shintaro Miyatani, Daisuke Ikeda
-
Patent number: 10288837Abstract: To enable a moving object to be movable even when electromotive driving of the moving object is not possible and prevent inconvenience from occurring during medical procedures.Type: GrantFiled: July 29, 2015Date of Patent: May 14, 2019Assignee: SONY CORPORATIONInventors: Shintaro Miyatani, Takashi Kato, Takashi Terai, Hiroshi Mashima, Ryuhei Azuma, Daisuke Ikeda
-
Publication number: 20170285321Abstract: To achieve improvement in functionality resulting from switching of optical elements and miniaturization of the device. A medical observation device includes: an imaging optical system configured to capture an image of a subject; an image sensor configured to photoelectrically convert the image of the subject captured by the imaging optical system; and an element holding frame configured to hold a plurality of optical elements and to be capable of being rotated around a rotation shaft. An axial direction of the rotation shaft is set to a direction orthogonal to an optical axis direction that is a direction of a line from the imaging optical system to the image sensor, and the element holding frame is rotated and thus at least one of the optical elements among the plurality of optical elements is positioned on an optical axis.Type: ApplicationFiled: July 29, 2015Publication date: October 5, 2017Inventors: RYUHEI AZUMA, HIROSHI MASHIMA, TAKASHI KATO, TAKASHI TERAI, SHINTARO MIYATANI, DAISUKE IKEDA
-
Publication number: 20170285297Abstract: To enable a moving object to be movable even when electromotive driving of the moving object is not possible and prevent inconvenience from occurring during medical procedures.Type: ApplicationFiled: July 29, 2015Publication date: October 5, 2017Inventors: SHINTARO MIYATANI, TAKASHI KATO, TAKASHI TERAI, HIROSHI MASHIMA, RYUHEI AZUMA, DAISUKE IKEDA
-
Patent number: 9594289Abstract: A lens drive unit includes: a driven member that moves a lens in an optical axis direction; a first gear rotated by a drive force of a drive motor; a second gear rotated by a drive force of a manual operation section; a third gear that engages with the first gear and the second gear and is rotated when the first gear is rotated but the second gear is not rotated whereas rotated when the second gear is rotated but the first gear is not rotated; and a fourth gear rotated when the third gear is rotated to transmit the drive force of the drive motor or the drive force of the manual operation section to the driven member, wherein the reduction ratio of the fourth gear to the first gear is set to be greater than the reduction ratio of the fourth gear to the second gear.Type: GrantFiled: April 18, 2013Date of Patent: March 14, 2017Assignee: SONY CORPORATIONInventors: Masayoshi Hamada, Takashi Terai
-
Patent number: 9013628Abstract: A lens barrel includes: a lens holding frame holding a lens; a mounting member to which the lens holding frame is mounted; an inclination regulating member regulating a position of the lens holding frame with respect to the mounting member, thereby regulating inclination of the lens holding frame with respect to an optical axis; and an eccentricity regulating member regulating the position of the lens holding frame with respect to said mounting member, thereby regulating eccentricity of the lens holding frame with respect to the optical axis, in which the eccentricity regulating member is supported by said inclination regulating member.Type: GrantFiled: May 7, 2013Date of Patent: April 21, 2015Assignee: Sony CorporationInventors: Kiyomitsu Furuyama, Takashi Terai, Toshiaki Edamitsu, Naoko Matsubara
-
Publication number: 20130335623Abstract: A lens barrel includes: a lens holding frame holding a lens; a mounting member to which the lens holding frame is mounted; an inclination regulating member regulating a position of the lens holding frame with respect to the mounting member, thereby regulating inclination of the lens holding frame with respect to an optical axis; and an eccentricity regulating member regulating the position of the lens holding frame with respect to said mounting member, thereby regulating eccentricity of the lens holding frame with respect to the optical axis, in which the eccentricity regulating member is supported by said inclination regulating member.Type: ApplicationFiled: May 7, 2013Publication date: December 19, 2013Applicant: Sony CorporationInventors: Kiyomitsu Furuyama, Takashi Terai, Toshiaki Edamitsu, Naoko Matsubara
-
Publication number: 20130333495Abstract: A lens drive unit includes: a driven member that moves a lens in an optical axis direction; a first gear rotated by a drive force of a drive motor; a second gear rotated by a drive force of a manual operation section; a third gear that engages with the first gear and the second gear and is rotated when the first gear is rotated but the second gear is not rotated whereas rotated when the second gear is rotated but the first gear is not rotated; and a fourth gear rotated when the third gear is rotated to transmit the drive force of the drive motor or the drive force of the manual operation section to the driven member, wherein the reduction ratio of the fourth gear to the first gear is set to be greater than the reduction ratio of the fourth gear to the second gear.Type: ApplicationFiled: April 18, 2013Publication date: December 19, 2013Applicant: SONY CORPORATIONInventors: Masayoshi Hamada, Takashi Terai
-
Patent number: 8019213Abstract: An exchangeable lens includes: a cam member; a plurality of lenses; a lens holding frame; a drive motor; a worm screw; a worm wheel; a planetary roller; a first rotating member; a first bearing seat; a second rotating member; and a second bearing seat.Type: GrantFiled: May 10, 2010Date of Patent: September 13, 2011Assignee: Sony CorporationInventor: Takashi Terai
-
Publication number: 20100310244Abstract: An exchangeable lens includes: a cam member; a plurality of lenses; a lens holding frame; a drive motor; a worm screw; a worm wheel; a planetary roller; a first rotating member; a first bearing seat; a second rotating member; and a second bearing seat.Type: ApplicationFiled: May 10, 2010Publication date: December 9, 2010Applicant: Sony CorporationInventor: Takashi Terai
-
Patent number: 7450170Abstract: When a brightness level of an object is below a predetermined level, an ND filter is removed from an iris opening to fully open the iris opening, and when the brightness level of the object is above a predetermined level, the ND filter is placed to the iris opening to fully close the iris opening. When the ND filter is moved between the fully-opened state and the fully-closed state, an exposure change amount corresponding to an amount offsetting the exposure change amount due to a state transition is generated by controlling iris blades.Type: GrantFiled: July 16, 2004Date of Patent: November 11, 2008Assignee: Sony CorporationInventors: Takashi Terai, Yusuke Nanjo, Kunioki Takahashi, Koji Okajima, Asuka Matsumoto
-
Publication number: 20050046737Abstract: When a brightness level of an object is below a predetermined level, an ND filter is removed from an iris opening to fully open the iris opening, and when the brightness level of the object is above a predetermined level, the ND filter is placed to the iris opening to fully close the iris opening. When the ND filter is moved between the fully-opened state and the fully-closed state, an exposure change amount corresponding to an amount offsetting the exposure change amount due to a state transition is generated by controlling iris blades.Type: ApplicationFiled: July 16, 2004Publication date: March 3, 2005Applicant: Sony CorporationInventors: Takashi Terai, Yusuke Nanjo, Kunioki Takahashi, Koji Okajima, Asuka Matsumoto
-
Patent number: 6700332Abstract: An electrodeless discharge lamp system includes an excitation coil placed in proximity of the electrodeless discharge lamp, a resonance circuit for supplying appropriate power to the excitation coil, and a high frequency power source driver and wherein, the combined output is achieved by operating the parallel connected power sources in synchronization or approximately in synchronization with each other.Type: GrantFiled: September 25, 2001Date of Patent: March 2, 2004Assignee: Toshiba Lighting & Technology CorporationInventors: Ichiro Yokozeki, Hiroyuki Doi, Takashi Terai, Ioshiya Suzuki, Masaaki Kawamura
-
Publication number: 20020047615Abstract: An electrodeless discharge lamp system includes an excitation coil placed in proximity of the electrodeless discharge lamp, a resonance circuit for supplying appropriate power to the excitation coil, and a high frequency power source driver and wherein, the combined output is achieved by operating the parallel connected power sources in synchronization or approximately in synchronization with each other.Type: ApplicationFiled: September 25, 2001Publication date: April 25, 2002Inventors: Ichiro Yokozeki, Hiroyuki Doi, Takashi Terai, Ioshiya Suzuki, Masaaki Kawamura
-
Patent number: 5805255Abstract: A liquid-filled optical device has an optical casing filled with liquid. An agitation device is provided for agitating the liquid in the optical casing so as to effect convection of the liquid. The agitation device comprises a propeller disposed in the liquid in the optical casing, and a rotating device for rotating the propeller.Type: GrantFiled: February 6, 1996Date of Patent: September 8, 1998Assignee: Pioneer Electronic CorporationInventors: Hiroyuki Mori, Takashi Terai
-
Patent number: 5381189Abstract: A liquid cooling type projector is provided with greater flexibility to meet different screen sizes of a projection television and, thus, contributes to the reduction of production cost. The projector has a cylindrical frame containing a projection lens unit mounted by a liquid-tight member thereto and coupled at a rear end to a CRT in liquid-tight arrangement such that a liquid-sealing space is established between the projection lens and the CRT. In particular, the projection lens unit is arranged so as to be movable with respect to the frame along its optical axis. Also, the liquid-tight member is arranged to maintain the liquid-tight condition regardless of the position of the projection lens unit relative to the frame. Thus, the projection lens unit can arbitrarily be displaced towards and away from the CRT, increasing a focusing range.Type: GrantFiled: October 28, 1993Date of Patent: January 10, 1995Assignee: Pioneer Electronic CorporationInventors: Takashi Terai, Takayuki Yoshioka, Hideki Yamamoto
-
Patent number: 5349472Abstract: A coupled lens assembly comprises a plurality of lens units coupled by an intermediate layer disposed between the adjoining lens units, the intermediate layers being formed of an additional type silicone filler. A coupled lens assembly comprises a plurality of lens units coupled by an intermediate layer disposed between the adjoining lens units and formed of a bonding agent. Each of the lens units has a central lens portion and a peripheral portion surrounding the central lens portion and wherein one of the adjoining lens units has a flanged portion formed to a peripheral portion and the other one of the adjoining lens units has an engaging portion formed to the peripheral portion to be engaged with the flanged portion when both the lens units are coupled with optical axes of both the lens units being aligned.Type: GrantFiled: July 9, 1992Date of Patent: September 20, 1994Assignee: Pioneer Electronic CorporationInventors: Takashi Terai, Takayuki Yoshioka
-
Patent number: 5218484Abstract: A lens frame consists of a lens barrel with a built-in projection lens and a support member in which the lens barrel is inserted and supported. The lens barrel has on its outer surface a pair of axially spaced projections as a slide member. The support member has on its inner surface projected guide strips that extend inclined with respect to a plane perpendicular to the axis of the support member. The support member also has axially extending ribs on the inner surface that tightly engage with the outer surface of the lens barrel as the latter is inserted into the former, in order to keep their axes aligned. With the lens barrel inserted and the projected guide strip received between the paired projections, the lens barrel is rotated and the paired projections are guided along the inclined projected guide strip, causing the lens barrel to move forward or backward in the axial direction. In this way, the focus adjustment can easily be made.Type: GrantFiled: October 11, 1991Date of Patent: June 8, 1993Assignee: Pioneer Electronic CorporationInventor: Takashi Terai