Patents by Inventor Kazuyuki Takahashi

Kazuyuki Takahashi 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: 20130286356
    Abstract: An illumination device includes a laser light source, and a polarization control device configured to control a polarization state of laser light emitted thereon from the laser light source, and to output light having at least two different polarization states.
    Type: Application
    Filed: April 15, 2013
    Publication date: October 31, 2013
    Inventors: Kazuyuki Takahashi, Kazumasa Kaneda
  • Patent number: 8569406
    Abstract: To provide a polycarbonate resin composition having improved flame retardancy and moldability. A polycarbonate resin having a ratio of the melt viscosity ?10 measured at 300° C. at a shear rate of 10 sec?1 to the melt viscosity ?1000 measured at 300° C. at a shear rate of 1000 sec?1 (?10/?1000) of at least 3 and at most 8, a branch parameter G=[?]/[?]lin of at least 0.80 and at most 0.94, and a pencil hardness of at least HB.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: October 29, 2013
    Assignees: Mitsubishi Chemical Corporation, Mitsubishi Engineering Plastics Corporation
    Inventors: Ryuuji Uchimura, Kazuyuki Takahashi, Kenji Tsuruhara, Tomonari Yokoyama
  • Publication number: 20130258215
    Abstract: An illumination device includes: a light source section including a laser light source; a uniformization optical member including a plurality of unit cells which are two dimensionally arranged, and receiving light from the light source section; an optical device disposed on an optical path between the light source section and the uniformization optical member; and a drive section vibrating the optical device, in which an expression (1) is satisfied: {6×f×tan(?f)}>Pf ??(1) where f is a focal length of the unit cell, Pf is a pitch of the unit cell, ?f is a marginal ray angle in a light flux emitted from the optical device to enter the uniformization optical member.
    Type: Application
    Filed: March 27, 2013
    Publication date: October 3, 2013
    Applicant: Sony Corporation
    Inventors: Kazumasa Kaneda, Kazuyuki Takahashi
  • Publication number: 20130258294
    Abstract: An illumination device includes: a light source section including a laser light source; a first uniformization optical member receiving light from the light source section; a second uniformization optical member receiving light from the first uniformization optical member; an optical device disposed on an optical path of outgoing light from the light source section; and a drive section vibrating the optical device.
    Type: Application
    Filed: March 27, 2013
    Publication date: October 3, 2013
    Applicant: Sony Corporation
    Inventors: Kazumasa Kaneda, Koji Miura, Toshifumi Yasui, Kazuyuki Takahashi
  • Patent number: 8504198
    Abstract: A robot hand has a pipe which is sufficiently flexible to allow a change in the cross-sectional area thereof according to the pressure of a fluid, thereby permitting a higher degree of freedom of the layouts of the pipe and a master cylinder connected through the pipe. Moreover, considerations are given to a change in the cross-sectional area of the pipe caused by a change in the pressure of the fluid in the pipe, thus making it possible to measure the position of a slave piston with high accuracy.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: August 6, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Kazuyuki Takahashi, Hironori Waita, Hiroshi Gomi
  • Patent number: 8463434
    Abstract: A system is capable of controlling the movements of a hand so as to ensure a further stable grasp of an object. In a state wherein an object is in contact with a plurality of finger mechanisms and a palm portion by being grasped by the hand, the load to be applied to the object from each of the plurality of finger mechanisms can be adjusted. Thus, the position of the load center on the palm portion can be displaced so as to be included in a target palm area. Further, the load to be applied to the palm portion can be adjusted so as to fall within a target load range.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: June 11, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventor: Kazuyuki Takahashi
  • Patent number: 8459711
    Abstract: A five-fingered hand device suitably applicable to a humanoid robot is provided. The device includes a hand body (2) which has a base (4) and five finger mechanisms (5) to (9), a drive unit (3) which drives the finger mechanisms, and a control unit (36) which controls bending and stretching of the finger mechanisms. The drive unit (3) has driven fluid pressure cylinders provided inside the hand body (2) and driving fluid pressure cylinders (37) provided outside the hand body (2), the driven fluid pressure cylinders being connected to the driving fluid pressure cylinders via fluid pressure transmission pipes (45).
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: June 11, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masato Hayakawa, Kazuyuki Takahashi, Hironori Waita, Hiroshi Gomi
  • Patent number: 8400677
    Abstract: The image processing apparatus includes: a color conversion unit color-converting an image signal of a first color space into that of a second color space with a color conversion characteristic defining a correspondence relationship between the image signals; an adjustment unit adjusting the image signal of the second color space with adjustment conversion factor groups that is for adjusting it in accordance with a change in the color conversion characteristic, and is set for respective types of sheets on which an image is to be printed according to the image signal of the second color space; a calculation unit calculating the adjustment conversion factor groups; a memory storing an associating factor group associating, with each other, the adjustment conversion factor groups; and an update unit updating the adjustment conversion factor groups according to the calculated adjustment conversion factor group of one sheet and the stored associating factor group.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: March 19, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Masaomi Sakamoto, Yoshiharu Hibi, Ryouichi Satoh, Toshifumi Takahira, Pauvi Sulistio, Kazuyuki Takahashi
  • Publication number: 20130050285
    Abstract: An illumination device includes: a light source section including a laser light source; an optical element disposed on an optical path of a laser light beam emitted from the laser light source, branching an optical path of an incident light beam incident thereon into a plurality of optical paths, and allowing branched light beams to be output therefrom; an optical member receiving the branched light beams that travel along the plurality of optical paths, and allowing illumination light to be output therefrom based on the branched light beams; and a driver section driving the optical element to allow phases of the branched light beams to be changed independently of one another.
    Type: Application
    Filed: August 1, 2012
    Publication date: February 28, 2013
    Applicant: SONY CORPORATION
    Inventors: Kazuyuki Takahashi, Masahiro Saito, Toshifumi Yasui
  • Publication number: 20130030094
    Abstract: To provide a polycarbonate resin composition having improved flame retardancy and moldability. A polycarbonate resin having a ratio of the melt viscosity ?10 measured at 300° C. at a shear rate of 10 sec?1 to the melt viscosity ?1000 measured at 300° C. at a shear rate of 1000 sec?1 (?10/?1000) of at least 3 and at most 8, a branch parameter G=[?]/[?]lin of at least 0.80 and at most 0.94, and a pencil hardness of at least HB.
    Type: Application
    Filed: October 1, 2012
    Publication date: January 31, 2013
    Inventors: Ryuuji Uchimura, Kazuyuki Takahashi, Kenji Tsuruhara, Tomonari Yokoyama
  • Publication number: 20130030113
    Abstract: To provide a polycarbonate resin composition excellent in surface hardness and impact strength. A polycarbonate resin composition comprising at least a polycarbonate resin (a) and a polycarbonate resin (b) having structural units different from the polycarbonate resin (a), which satisfies the requirements: (i) the pencil hardness of the polycarbonate resin (a) as specified by ISO15184 is higher than the pencil hardness of the polycarbonate resin (b) as specified by ISO15184; (ii) the weight ratio of the polycarbonate resin (a) to the polycarbonate resin (b) in the polycarbonate resin is from 1:99 to 45:55; (iii) the pencil hardness of the polycarbonate resin composition as specified by ISO15184 is higher by at least two ranks than the pencil hardness of the polycarbonate resin (b) as specified by ISO15184; and (iv) the Charpy impact strength of the polycarbonate resin composition is higher than the Charpy impact strength of the polycarbonate resin (a).
    Type: Application
    Filed: October 1, 2012
    Publication date: January 31, 2013
    Inventors: Tatsuya HITOMI, Ryouhei Nishihara, Masanori Yamamoto, Michio Nakata, Tetsurou Nobuyasu, Ryuuji Uchimura, Kazuyuki Takahashi, Kenji Tsuruhara, Tomonari Yokohama
  • Publication number: 20130030112
    Abstract: To provide a polycarbonate resin composition excellent in the surface hardness, the heat resistance, the moldability and the flame retardancy. A polycarbonate resin composition comprising at least a polycarbonate resin (a) and a polycarbonate resin (b) having structural units different from the polycarbonate resin (a), which satisfies the following requirements: (i) the pencil hardness of the polycarbonate resin (a) as specified by ISO 15184 is higher than the pencil hardness of the polycarbonate resin (b) as specified by ISO 15184; (ii) the glass transition point Tg(a) of the polycarbonate resin (a) and the glass transition point Tg(b) of the polycarbonate resin (b) satisfy the relation of the following (Formula 1): Tg(b)?45° C.<Tg(a)<Tg(b)?10° C.??(Formula 1) and (iii) the pencil hardness of the polycarbonate resin composition as specified by ISO 15184 is higher by at least two ranks than the pencil hardness of the polycarbonate resin (b) as specified by ISO 15184.
    Type: Application
    Filed: October 1, 2012
    Publication date: January 31, 2013
    Inventors: Tatsuya HITOMI, Ryouhei NISHIHARA, Masanori YAMAMOTO, Michio NAKATA, Tetsurou NOBUYASU, Ryuuji UCHIMURA, Kazuyuki TAKAHASHI, Kenji TSURUHARA, Tomonari YOKOYAMA
  • Publication number: 20130021581
    Abstract: An illuminator and a display capable of achieving miniaturization are provided with use of a plurality of light sources emitting light with two or more kinds of wavelengths. In the light source unit 11, a red-color laser 11R, a green-color laser 11G, a blue-color laser 11B, a microlens section 116, and a microprism 117 are integrated on a base material. Each laser beam emitted from each of the laser light sources is transmitted through the microlens section 116, and then, comes into the microprism 117. In the microprism 117, optical path conversion is performed to shorten the distance between the optical paths of the incident light beams (to allow the optical axes of the incident light beams to be closer to each other).
    Type: Application
    Filed: July 22, 2011
    Publication date: January 24, 2013
    Inventors: Kazuyuki Takahashi, Koji Miura, Tatsuya Oiwa
  • Publication number: 20130016136
    Abstract: An illumination device includes: a light source section including a laser light source, and allowing a laser light beam emitted from the laser light source to be outputted intermittently at a predetermined frequency; an optical element through which the laser light beam passes; and a driver section changing a coherency of the laser light beam by driving the optical element at a predetermined drive frequency. Expressions (1) |2×f2?n1×f1|?20 or (2) |2×f2?n2×f1|?3, (3) f2?20 or (4) f2?3, and (5) |f2?n1×f1|?20 or (6) |f2?n3×f1|?3 are satisfied, where f1 denotes the frequency in Hz, f2 denotes a variation frequency of luminance in illumination light outputted from the optical element in Hz, the variation frequency being generated by the driving of the optical element, n1 denotes an arbitrary integer of 0 to 10 both inclusive, and n2 and n3 denote respective predetermined integers of 0 to 10 both inclusive.
    Type: Application
    Filed: July 7, 2012
    Publication date: January 17, 2013
    Applicant: SONY CORPORATION
    Inventors: Toshifumi Yasui, Hiroshi Isobe, Kazuyuki Takahashi
  • Publication number: 20130010002
    Abstract: Provided are an illumination unit and a display capable of achieving size reduction in a case where a plurality types of light sources emitting light with various different wavelengths are in use. An optical-path conversion member 12 is provided for performing optical-path conversion to light (red laser light Lr, green laser light Lg, and blue laser light Lg) coming from three types of light sources (a red laser 11R, a green laser 11G, and a blue laser 11B) in a light source unit 11 in such a manner that, compared with an angle formed by center rays in the light, an angle formed by center rays in outgoing light becomes much smaller. Such optical-path conversion is performed without using a large-scale optical system (optical members).
    Type: Application
    Filed: July 22, 2011
    Publication date: January 10, 2013
    Applicant: SONY CORPORATION
    Inventors: Kazuyuki Takahashi, Koji Miura, Tatsuya Oiwa
  • Patent number: 8305665
    Abstract: The image processing apparatus includes: a color conversion unit color-converting an image signal of a first color space into that of a second color space by using a color conversion characteristic defining a correspondence relationship between the image signals of the first and second color spaces; an adjustment unit adjusting the image signal of the second color space, in accordance with a change in the color conversion characteristic; a correction unit correcting a conversion factor group for adjustment used when the image signal of the second color space is adjusted; and a judgment unit judging whether the conversion factor group needs to be corrected, on the basis of a color measurement result of a second color sample group including color samples the number of which is smaller than that of color samples in a first color sample group on which color measurement is performed to create the conversion factor group.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: November 6, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Masaomi Sakamoto, Yoshiharu Hibi, Ryouichi Satoh, Toshifumi Takahira, Pauvi Sulistio, Kazuyuki Takahashi
  • Publication number: 20120242960
    Abstract: Provided are an illumination device and a display apparatus capable of reducing generation of an interference pattern, while achieving downsizing and enhancing light use efficiency. An illumination device includes: a light source section that includes a laser light source; an optical device disposed on a light path through which laser light from the laser light source travels; an optical member that outputs illumination light; and a driving section that displaces a relative position between the optical device and the optical member to vary at least one of an incidence position and an incidence angle, in an incidence surface of the optical member, of the laser light.
    Type: Application
    Filed: September 30, 2011
    Publication date: September 27, 2012
    Applicant: SONY CORPORATION
    Inventors: Tatsuya Oiwa, Kazuyuki Takahashi, Koji Miura
  • Patent number: 8239411
    Abstract: A first sorting unit includes a second sorting unit that sorts first frequency data for luminance based on a first table, a third sorting unit that sorts second frequency data for chrominance based on a second table, a fourth sorting unit that sorts third frequency data for chrominance based on a third table, and an updating unit that updates the second and third tables based on nonzero information on the first and second frequency data before the third and fourth sorting units start sorting.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: August 7, 2012
    Assignee: MegaChips Corporation
    Inventors: Yujiro Tani, Kazuyuki Takahashi
  • Patent number: 8227411
    Abstract: The present invention provides a fibroblast growth factor heparin-binding analog of the formula: where R1, R2, R3, R4, R5, X, Y and Z are as defined, pharmaceutical compositions, coating compositions and medical devices including the fibroblast growth factor heparin-binding analog of the foregoing formula, and methods and uses thereof.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: July 24, 2012
    Assignees: BioSurface Engineering Technologies, Incle, Brookhaven and Science Associates
    Inventors: Paul O. Zamora, Louis A. Pena, Xinhua Lin, Kazuyuki Takahashi
  • Publication number: 20120092624
    Abstract: An illumination device includes: a light source section having plural kinds of light sources, in which the light sources emits light beams having different wavelengths; a parallelizing optical system parallelizing each of the light beams entered from the light sources, and allowing each of the parallelized light beams to exit therefrom; a light path unifying optical system unifying the parallelized light beams exited from the parallelizing optical system into a single light path; an expanding optical system expanding a beam diameter of each of the parallelized light beams unified into the single light path, and allowing each of the expanded and parallelized light beams to exit therefrom; and a uniformizing optical system uniformizing an in-plane intensity distribution in each of the expanded and parallelized light beams exited from the expanding optical system.
    Type: Application
    Filed: October 5, 2011
    Publication date: April 19, 2012
    Applicant: Sony Corporation
    Inventors: Tatsuya Oiwa, Kazuyuki Takahashi, Koji Miura