Patents by Inventor Yutaka Kasami

Yutaka Kasami 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: 20160125324
    Abstract: The present technology relates to an information processing apparatus, an information processing method, and a program that improve a user's degree of satisfaction in a seat or area for viewing an event. In step S102, matching between a feature of each seat assigned to a user in a target event and a feature of a user is performed. Then, a target user who is a target for recommending each seat of the target event is selected. In step S104, a recommended seat and the target event are recommended to a selected target user. The present technology can be applied to a system that performs recommendation of an event, for example.
    Type: Application
    Filed: July 22, 2014
    Publication date: May 5, 2016
    Applicant: SONY CORPORATION
    Inventors: Noriyuki YAMAMOTO, Yutaka KASAMI, Seiichi TAKAMURA, Yasuharu ASANO, Masashi SEKINO
  • Patent number: 6551679
    Abstract: An optical recording medium is disclosed which incorporates a recording layer made of a phase-change material. The optical recording medium has a structure such that the ratio Ac/Aa of absorptance Ac realized when the recording layer is in a crystal state and absorptance Aa realized when the recording layer is in an amorphous state is 0.9 or higher. Moreover, a crystallization enhancing layer for enhancing crystallization of the phase-change material is formed which is made to contact with at least either surface of the recording layer. Since control of the absorptance and enhancement of crystallization are simultaneously performed, the difference between the physical properties of crystal and those of amorphous can be reliably compensated for. Thus, a satisfactory direct overwriting can be performed even under high speed and dense conditions.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: April 22, 2003
    Assignee: Sony Corporation
    Inventors: Yuji Kuroda, Yutaka Kasami
  • Patent number: 6434108
    Abstract: An optical disc on or from which information signals are recorded/reproduced by irradiation of a laser light beam is disclosed. The optical disc has a plurality of top surfaces, a plurality of bottom surfaces, and a plurality of portions formed on a major surface of a disc substrate of the optical disc. The portions separate the top and bottom surfaces from each other. A recording track is constituted by each top surface and each bottom surface. Each bottom surface and each top surface have a first width, while each portion has a second width. The recording track has a track pitch P defined by the sum of the first width and said second pitch. The pitch is related with the second width and the spot diameter of the playback light &phgr; by a formula and P<&phgr;/2 and 0.1 &mgr;m<second width ≦&phgr;/2.5.
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: August 13, 2002
    Assignee: Sony Corporation
    Inventors: Yutaka Kasami, Koichi Yasuda, Atsushi Fukumoto
  • Patent number: 6373814
    Abstract: A method of initializing a phase-change optical disk which is capable of preventing enlargement of an amount of jitter which takes place when the number of overwriting operations does not exceed several times. The surface of the phase-change optical disk, on which information signals will be recorded, is crystallized. Then, signals are recorded with marks and spaces in grooves along tracks of the phase-change optical disk so that initialization is performed. The initialization is performed in such a manner that the length of each of spaces is shorter than a shortest length of spaces of information signals.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: April 16, 2002
    Assignee: Sony Corporation
    Inventors: Yutaka Kasami, Kazumine Ito
  • Patent number: 6312780
    Abstract: A phase change optical recording medium which enables optimum direct overwrite even under high speed high density conditions without degrading repetition durability or storage stability of recorded signals. To this end, the phase change optical recording medium has a recording layer formed at least of a phase change material and is recorded and/or reproduced with a laser light beam having a wavelength ranging between 380 nm and 420 nm. A ratio Ac/Aa, where Ac is the absorption rate of said recording layer in a crystalline state and Aa is the absorption rate of said recording layer in an amorphous state, is not less than 0.9, and a crystallization promoting layer promoting the crystallization of the phase change material is contacted with at least one surface of the recording layer.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: November 6, 2001
    Assignee: Sony Corporation
    Inventors: Yutaka Kasami, Osamu Kawakubo, Katsuhiro Seo
  • Publication number: 20010012262
    Abstract: A method of initializing a phase-change optical disk which is capable of preventing enlargement of an amount of jitter which takes place when the number of overwriting operations does not exceed several times. The surface of the phase-change optical disk, on which information signals will be recorded, is crystallized. Then, signals are recorded with marks and spaces in grooves along tracks of the phase-change optical disk so that initialization is performed. The initialization is performed in such a manner that the length of each of spaces is shorter than a shortest length of spaces of information signals.
    Type: Application
    Filed: January 9, 1998
    Publication date: August 9, 2001
    Inventors: YUTAKA KASAMI, KAZUMINE ITO
  • Patent number: 5768221
    Abstract: A multiple-recording-layer optical recording medium has a plurality of recording layers to be initialized by exposure to light, with a transparent layer interposed between the recording layers. Light is applied simultaneously to the to the recording layers to initialize the recording layers simultaneously.
    Type: Grant
    Filed: September 19, 1996
    Date of Patent: June 16, 1998
    Assignee: Sony Corporation
    Inventors: Yutaka Kasami, Koichi Yasuda, Atsushi Fukumoto, Shigeki Takagawa