Patents by Inventor Takashi Kubota

Takashi Kubota 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: 9664883
    Abstract: An image display device includes a high-performance projection zoom lens with a very wide field angle and an image display device including a projection zoom lens of a five-lens-group type, which achieves high performance across the entire zoom area. The image display device is configured to project an image onto a target projection surface and display a magnified image of the image, which uses a projection zoom lens having a five-lens-group configuration in which first to fifth lens groups G1 to G5 are arranged from the magnification side toward the reduction side, and each of the constituent lens groups or lenses included in the lens groups has a combination of negative and positive refractive powers, and in the lens configuration, focal lengths of the constituent lens groups, relative travel distances, lens distances to the image display element, and constituent lens shapes are properly selected.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: May 30, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventor: Takashi Kubota
  • Publication number: 20170149038
    Abstract: A polyolefin multilayer microporous membrane is disclosed. The polyolefin multilayer microporous membrane has at least three layers, the membrane comprising a first microporous layer composed of a polyethylene resin containing an ultrahigh molecular weight polyethylene (surface layers) and a second microporous layer composed of a polyolefin rein containing a high-density polyethylene and polypropylene (intermediate layer), wherein (I) the pin puncture strength is at least 25 g/?m, (II) the coefficient of static friction with respect to a metal foil is at least 0.40, and (III) the meltdown temperature is at least 180° C.
    Type: Application
    Filed: May 28, 2015
    Publication date: May 25, 2017
    Applicant: TORAY BATTERY SEPARATOR FILM CO., LTD.
    Inventors: Yukiko MIURA, Hideto MITSUOKA, Takashi KUBOTA
  • Patent number: 9638903
    Abstract: Disclosed is a projection zoom lens used in an image display device configured to project an image onto a target projection surface and display a magnified image of the image, in which the projection zoom lens has a five-lens-group configuration in which first to fifth lens groups G1 to G5 are arranged from the magnification side toward the reduction side, and each of the constituent lens groups or lenses included in the lens groups has a combination of negative and positive refractive powers, and in the lens configuration, focal lengths of the constituent lens groups, relative travel distances, lens distances to the image display element, and constituent lens shapes are properly selected.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: May 2, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventor: Takashi Kubota
  • Patent number: 9615464
    Abstract: A method of mounting a semiconductor element, the method includes: attaching a first solder joint material onto a first pad formed on a substrate supplying a second solder joint material onto the first solder joint material, a second melting point of the second solder joint material being lower than a first melting point of the first solder joint material; arranging the semiconductor element so that a second pad formed on the semiconductor element faces the first pad and a joint gap is provided between the semiconductor element and the substrate; and performing reflow at a reflow temperature lower than the first melting point and higher than the second melting point to join the first solder joint material and the second solder joint material.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: April 4, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Takashi Kubota, Masayuki Kitajima, Takatoyo Yamakami, Hidehiko Kira
  • Publication number: 20170090094
    Abstract: A light guide for a virtual image device to guide and emit image light output from an image display element to display a virtual image. The light guide includes a light-guide member and an optical member. The light-guide member includes an incidence portion to receive the image light and an exit portion to emit the image light to an outside, and a reflective portion inclined relative to the incidence portion to guide the image light received by the incidence portion into the light guide. The light-guide member also includes an extraction portion including first planes each inclined relative to the exit portion and second planes each parallel with the exit portion, to guide the image light from each first plane to the exit portion and extract the image light. The optical member includes a parallel plane and an inclined portion.
    Type: Application
    Filed: September 20, 2016
    Publication date: March 30, 2017
    Inventors: Shiori OHSUGI, Takashi KUBOTA, Takanobu OSAKA, Naoki NAKAMURA
  • Patent number: 9606324
    Abstract: An image forming lens consists of from an object side to an image side in the following order: a first group with a positive refractive power; an aperture stop; and a second group with a positive refractive power, wherein the second group includes, from the object side to the image side in the following order, a biconvex lens, a biconcave lens, a negative meniscus lens a convex surface of which faces the image side, a biconvex lens, and a positive meniscus lens a convex surface of which faces the image side.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: March 28, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Takashi Kubota, Kazuyasu Ohashi
  • Patent number: 9547126
    Abstract: An optical waveguide sheet, includes: an optical path; and a clad member that covers the optical path, wherein the clad member has a portion formed by removing a part of the clad member which is on a first surface of an optical waveguide sheet on which the optical component is to be mounted and is provided within an area which is unused for propagation of light input to and output from the optical component.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: January 17, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Sanae Iijima, Takashi Kubota, Norio Kainuma, Hidehiko Kira
  • Publication number: 20160363745
    Abstract: A projection lens includes, in order from a magnification side to a reduction side, a first lens group having a negative refractive power, a reflector to bend an optical path, a second lens group having a positive refractive power, and an aperture stop disposed within the second lens group. The second lens group has a positive refractive power on the magnification side of the aperture stop, and a negative refractive power on the reduction side of the aperture stop. Conditional formula (A) is satisfied: (A) Ot/Y?<6.1, where Ot is a distance along the optical axis between a maximum-magnification-side surface of the first lens group and a surface of a lens adjacent to a reduction-side surface of the reflector, and Y? is a maximum height of the image displayed on the display surface of the image display element.
    Type: Application
    Filed: June 1, 2016
    Publication date: December 15, 2016
    Inventor: TAKASHI KUBOTA
  • Publication number: 20160338675
    Abstract: The ultrasonic probe according to the present embodiment includes a first transducer set, a second transducer set and a transducer set supporter. The first transducer set arranges transducers in a direction parallel with an axis of the ultrasonic probe. The second transducer set arranges transducers on a plane substantially orthogonal to the axis. The transducer set supporter supports the first transducer set and the second transducer set, and is configured to pivot around the axis.
    Type: Application
    Filed: February 16, 2016
    Publication date: November 24, 2016
    Applicant: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventor: Takashi KUBOTA
  • Patent number: 9490046
    Abstract: There is provided a conductive material which has a rapid reaction rate and is high in fluxing effect. The conductive material according to the present invention includes a conductive particle having solder at at least an external surface, an anionically hardenable compound, an anionic hardener, and an organic acid having a carboxyl group and having a functional group that is an esterified carboxyl group.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: November 8, 2016
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Hideaki Ishizawa, Takashi Kubota
  • Publication number: 20160284566
    Abstract: A first insulating film is applied onto a joining face of a semiconductor device including a connection terminal on a joining face, and the connection terminal is embedded inside the first insulating film. The second insulating film is formed on a joining target face of a joining target, which includes a connection target terminal on the joining target face, and the connection target terminal is embedded inside the second insulating film. The semiconductor device and the joining target are joined together by applying pressure and causing the semiconductor device and the joining target to make contact with each other.
    Type: Application
    Filed: January 29, 2016
    Publication date: September 29, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Hidehiko Kira, NORIO KAINUMA, TAKASHI KUBOTA, Takumi Masuyama
  • Patent number: 9453973
    Abstract: A fabrication method for an optical connector, includes: inserting an optical waveguide sheet, in a direction of an optical path of the optical waveguide sheet, into an insertion hole of an optical connector including lenses disposed in a juxtaposed relationship on a first end face of the optical connector, the insertion hole extending from a second end face of the optical connector at an opposite side to the first end face toward the lenses; and performing first adjustment of adjusting a position of a tip end of the optical path with respect to the lenses by pressing a side end portion of the optical waveguide sheet inserted in the insertion hole from at least one of sides of a first direction along a disposition direction of the lenses, through a first hole portion that is provided in the optical connector and extends to the insertion hole.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: September 27, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Takashi Kubota, Norio Kainuma, Sanae Iijima, Hidehiko Kira
  • Patent number: 9446484
    Abstract: Provided are a conductive particle and a conductive material which are capable of decreasing the connection resistance and suppressing generation of voids in a connection structure when the connection structure is obtained by electrically connecting electrodes. The conductive particle according to the present invention has a solder at a conductive surface, wherein a group including a carboxyl group is covalently bonded to the surface of the solder; and the conductive material according to the present invention includes the conductive particles and a binder resin.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: September 20, 2016
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Ryohei Masui, Takashi Kubota, Hideaki Ishizawa
  • Patent number: 9406283
    Abstract: A control system is provided with a plurality of input operation devices that send drawing request information for updating display contents at a shared display device, a display control device that is connected to the input operation devices via a communication line, that stores the drawing request information sent from the input operation devices in a buffer, and that updates the display contents in the shared display device on the basis of the drawing request information stored in the buffer. Then, the display control device controls the shared display device so that the display contents based on the drawing request information stored in the buffer are displayed by being updated in order of priority level, which is predetermined for each type of the drawing request information.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: August 2, 2016
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventor: Takashi Kubota
  • Publication number: 20160183796
    Abstract: A patient management system of an embodiment includes a server, a plurality of ophthalmic examination apparatuses assigned to a plurality of patients, and a plurality of computers installed in a plurality of medical institutions. The ophthalmic examination apparatuses and computers are communicable with the server via a communication line. The server manages the account of each patient, and the account of each medical institution. Test data obtained by each of the ophthalmic examination apparatuses is stored in the account of a corresponding patient. The server sends information stored in the account of a patient to a computer installed in one of the medical institutions assigned in advance to the patient.
    Type: Application
    Filed: July 25, 2014
    Publication date: June 30, 2016
    Applicant: KABUSHIKI KAISHA TOPCON
    Inventors: Yasufumi FUKUMA, Makoto FUJINO, Hisashi TSUKADA, Takashi KUBOTA
  • Patent number: 9332521
    Abstract: Access from a communication terminal apparatus is received, and identification information that enables identification of a position of a communication terminal apparatus from which the access has been received and transmission data are acquired from the communication terminal apparatus, and are stored in a storage unit. Then, if access has been received from a communication terminal apparatus next and thereafter, the transmission data stored in the storage unit is transmitted to the communication terminal apparatus on the basis of identification information that enables identification of a position of the communication terminal apparatus.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: May 3, 2016
    Assignee: NINTENDO CO., LTD.
    Inventors: Masatoshi Yamazaki, Taisuke Kawahara, Yusuke Inoue, Masaki Hara, Kei Yasuda, Masayoshi Matsuoka, Yoshinobu Sato, Hiroshi Adachi, Takashi Kubota
  • Patent number: 9297983
    Abstract: An imaging lens including seven or fewer lenses which constitute an entire system of an optical system comprising, in order from an object side to an imaging side: a first lens group having a positive refractive power; a second lens group having a positive refractive power; and a third lens group having a negative refractive power, wherein the first lens group includes a lens having a negative refractive power and a lens having a positive refractive power, an aperture stop being disposed in the first lens group, the second lens group includes one lens having a negative refractive power and one lens having a positive refractive power, and the third lens group including one lens having a negative refractive power and a concave surface on the object side.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: March 29, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventor: Takashi Kubota
  • Publication number: 20160086687
    Abstract: There is provided a conductive material which has a rapid reaction rate and is high in fluxing effect. The conductive material according to the present invention includes a conductive particle having solder at at least an external surface, an anionically hardenable compound, an anionic hardener, and an organic acid having a carboxyl group and having a functional group that is an esterified carboxyl group.
    Type: Application
    Filed: May 20, 2014
    Publication date: March 24, 2016
    Inventors: Hideaki Ishizawa, Takashi Kubota
  • Publication number: 20160054544
    Abstract: An image-forming lens includes, from an object side to an image side in order: a first lens group; an aperture; and a second lens group with a positive refractive power, the first lens group including, from the object side in order: a first F lens group with a negative refractive power; and a first R lens group with a positive refractive power, the first F lens group including, from the object side in order: a first negative lens; and a second negative lens, and the first R lens group including: any one of a positive lens and a cemented lens with a positive refractive power as a whole, wherein a distance from a surface on a most object side of the first lens group to an image plane in a state of focusing on an object at infinity: L, and a maximum image height: Y? satisfy Conditional expression 1:2.8<L/Y?<4.3.
    Type: Application
    Filed: October 23, 2015
    Publication date: February 25, 2016
    Inventors: Kazuyasu OHASHI, Takashi KUBOTA
  • Patent number: 9266312
    Abstract: A bonding apparatus has a light source, a stage, a component holder formed of a light transparent material, a controller, and a driver configured to drive the stage and the component holder under the control of the controller. The component holder includes an incident surface on which light outputted from the light source is made incident, a first reflection surface which is a surface opposite to the incident surface and reflects the incident light from the incident surface, a second reflection surface which reflects the light reflected by the first reflection surface, and an exit surface from which the light reflected by the second reflection surface exits. The bonding apparatus bonds the first component and the second component together with the photo-curing adhesive while holding the second component on the side of the exit surface of the component holder.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: February 23, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Takatoyo Yamakami, Takashi Kubota, Hidehiko Kira