Patents by Inventor Atsushi Shibuya

Atsushi Shibuya 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: 20090054011
    Abstract: Control of right-to-speak is performed by organizer's setting in PoC communication. In group management server, mobile-phones forming a group performing PoC communication are registered; presence server manages, for each mobile-phone, speaking permission and denial states of each mobile-phone in the PoC communication shown in notification from the mobile-phones; PoC server performs control of PoC communication between mobile-phones forming the group in the group management server, upon a request to perform PoC communication from a mobile-phone; when a request for right-to-speak is received from a mobile-phone performing the PoC communication, speaking permission and denial states of each mobile-phone managed by the presence server are referred to; and speaking for mobile-phone that made the request is permitted or denied.
    Type: Application
    Filed: February 22, 2007
    Publication date: February 26, 2009
    Inventor: Atsushi Shibuya
  • Publication number: 20080304393
    Abstract: Provided is a resin composition suitable for an optical element in which the moldability, thermal resistance, mechanical strength, and low birefringence are not impaired, the deterioration is hardly generated although the laser light nearby the UV is used, change in the optical properties during the use are extremely small, particularly the light transmittance is maintained high, and a foreign substance is hardly deposited on a surface of the molded product such as an optical element, also provided is an optical element obtained by molding the resin composition, and an optical pickup device using the optical element. The thermoplastic resin composition contains the polymer having a specific structure and two kinds of specific optical stabilizers in a specific mass ratio among a hindered amine light stabilizer having the molecular weight of 400 to 5,000; the optical element is obtained by molding the thermoplastic resin composition; and the optical pickup device includes the optical element.
    Type: Application
    Filed: July 1, 2005
    Publication date: December 11, 2008
    Inventors: Atsushi Shibuya, Toshiyuki Hirose
  • Publication number: 20080039609
    Abstract: A thermoplastic resin having a glass transition temperature of 130° C. or more, a saturated water absorption ratio is 0.1 mass % or less, and a stress-optical coefficient CR that satisfies |CR|?3×10?10Pa?1. The resin can be obtained by a random additional polymerization of ethylene and tetracyclo[4.4.0.12,5.17,10]-3-dodecene. A molded product of present invention comprises of the thermoplastic resin. The thermoplastic resin can provide a high heat resistant molded product which is small in property changes caused by water absorption and has an excellent optical property.
    Type: Application
    Filed: June 29, 2005
    Publication date: February 14, 2008
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Atsushi Shibuya, Toshiyuki Hirose
  • Publication number: 20070299199
    Abstract: A process for producing a cycloolefin resin composition comprising a cycloolefin resin and an additive by using a twin-screw extruder is provided, in which loss of the additive caused by volatilization through a vent during kneading is reduced and kneading of resin material with the additive can be sufficiently carried out. When the cycloolefin resin and the additive are kneaded by using a vented twin-screw extruder (10) to produce the cycloolefin resin composition containing the additive, an additive introduction opening (3) is disposed downstream of a vent (2) located nearest to a discharge opening (13) of the twin-screw extruder, and the additive is charged through the additive introduction opening located at a distance from the discharge opening of the twin-screw extruder in the range between longer than 10D and not longer than 30D.
    Type: Application
    Filed: December 27, 2005
    Publication date: December 27, 2007
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Kimiyoshi Miura, Sadao Yoshimoto, Noboru Koga, Takeshi Suzuki, Atsushi Shibuya
  • Patent number: 7054666
    Abstract: A portable communication terminal apparatus including a function provided for the portable communication terminal apparatus is registered in association with a predetermined word (keyword). When the registered keyword is extracted from character data displayed on the display screen of the portable communication terminal apparatus, the function registered in the portable communication terminal apparatus in association with the extracted keyword is called and executed.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: May 30, 2006
    Assignee: NEC Corporation
    Inventor: Atsushi Shibuya
  • Publication number: 20060099911
    Abstract: A burden on a user is reduced as much as possible in updating presence,and the presence is automatically updated. Near-field communication is performed with a non-contact communication apparatus installed in each place by means of the low-power-output transmission/receiving section of a mobile phone to acquire, from the non-contact communication apparatus, information about the place where it is installed. The mobile phone compares presence information registered with a presence management table and the received installation place information, generates presence information based on presence information corresponding to the installation place information, and transmits the presence information with the use of a transmission/receiving section.
    Type: Application
    Filed: November 1, 2005
    Publication date: May 11, 2006
    Inventor: Atsushi Shibuya
  • Patent number: 6916898
    Abstract: A process of preparing a polyimide of the present invention comprises effecting an imidization reaction of a diamine and a tetracarboxylic dianhydride in a solvent containing 50 to 100% by weight of an equimolar composition of a nitrogen-containing cyclic compound indicated by chemical formula (1) below and a phenol indicated by chemical formula (2) below: in formula (1), X represents —CH2— or —N(CH3)—, and in formula (2), R1 and R2 may be the same as, or different from, each other and represent each any one of —H, —OH, —CH3, —C2H5, —C3H7, —C4H9, —C5H11, —C6H13, —C7H15, —C8H17, —C9H19, —C10H21, —OCH3, —O(C6H5), —NO2, —Cl, —Br and —F.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: July 12, 2005
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Takashi Kuroki, Atsushi Shibuya, Shoji Tamai
  • Patent number: 6847703
    Abstract: In a portable communication terminal having a voice communication control unit for performing voice communication and a data communication control unit for performing data communication, a message storing unit with a message of character data stored therein is provided and when receiving a call signal, the data communication control unit takes out the message of character data stored in the message storing unit to send an electronic mail including the message to the electronic mail address of a calling party.
    Type: Grant
    Filed: December 26, 2000
    Date of Patent: January 25, 2005
    Assignee: NEC Corporation
    Inventor: Atsushi Shibuya
  • Patent number: 6618470
    Abstract: A portable communication terminal has an active call-up device for a user who tends to leave it, frequently; when an in-coming call/mail reaches the portable communication terminal in the absence of the user, a data processor periodically activates the active call-up device so that the active call-up device gives rise to excitative indication such as vibrations, flicker and/or rumble; the excitative indication forces the user to pay the attention to the incoming call/mail not responded yet so that the user immediately responds to the call/mail after returning to the portable communication terminal.
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: September 9, 2003
    Assignee: NEC Corporation
    Inventor: Atsushi Shibuya
  • Publication number: 20030158370
    Abstract: A process of preparing a polyimide of the present invention comprises effecting an imidization reaction of a diamine and a tetracarboxylic dianhydride in a solvent containing 50 to 100% by weight of an equimolar composition of a nitrogen-containing cyclic compound indicated by chemical formula (1) below and a phenol indicated by chemical formula (2) below: 1
    Type: Application
    Filed: September 13, 2002
    Publication date: August 21, 2003
    Inventors: Takashi Kuroki, Atsushi Shibuya, Shoji Tamai
  • Publication number: 20030074414
    Abstract: An electronic mail rejecting system can reject specific electronic mails with relatively simple operation on a mobile terminal. The system includes an electronic mail relaying component relaying an electronic mail from a sender terminal to a receiver terminal, a specific electronic mail returning component returning for notifying that the received electronic mail is a specific electronic mail to a specific mail processing component when the received electronic mail is the specific electronic mail, and the specific mail processing component identifying the sender of the specific electronic mail on the basis of a content of a return mail returned from the specific electronic mail returning component and information obtained from the electronic mail relaying component.
    Type: Application
    Filed: October 16, 2002
    Publication date: April 17, 2003
    Applicant: NEC Corporation
    Inventor: Atsushi Shibuya
  • Patent number: 6531568
    Abstract: This invention provides crosslinkable-group-containing polyimides of various known thermoplastic polyimide backbone structures, which are provided with far better heat resistance, chemical resistance and mechanical properties than known polyimides of the structures without impairing excellent moldability or formability, superb sliding property, low water absorption property, outstanding electrical properties, high thermal oxidation stability and high radiation resistance, all of which are inherent to the structures.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: March 11, 2003
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Atsushi Shibuya, Tomomi Okumura, Hideaki Oikawa, Yoshihiro Sakata, Takashi Kuroki, Yuichi Okawa, Shoji Tamai
  • Publication number: 20020154750
    Abstract: A portable communication terminal has an active call-up device for a user who tends to leave it, frequently; when an in-coming call/mail reaches the portable communication terminal in the absence of the user, a data processor periodically activates the active call-up device so that the active call-up device gives rise to excitative indication such as vibrations, flicker and/ or rumble; the excitative indication forces the user to pay the attention to the incoming call/mail not responded yet so that the user immediately responds to the call/mail after returning to the portable communication terminal.
    Type: Application
    Filed: April 16, 2002
    Publication date: October 24, 2002
    Inventor: Atsushi Shibuya
  • Patent number: 6458912
    Abstract: A thermoplastic polyimide having good thermal stability, comprising a repeating unit represented by the chemical formula (1), a molecular terminal being composed of the chemical formula (2) and/or chemical formula (3), characterized in that: a melt viscosity ratio calculated by the numerical formula (1) and/or the numerical formula (3) is within a numerical range shown in the numerical formula (2) and/or the numerical formula (4) and 1,3-bis(4-aminophenoxy)benzene represented by the chemical formula (3) for production of the above polyimide, characterized in that the content of an azo compound is from 0.0 to 0.2%. The thermoplastic polyimide of the present invention has excellent characteristics {circle around (1)} to {circle around (4)} described below. {circle around (1)} It is superior in thermal stability on melting. That is, the degree of lowering of the fluidity on melting with a lapse of time is small and it is possible to apply to conventional melt molding.
    Type: Grant
    Filed: February 5, 2001
    Date of Patent: October 1, 2002
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Takashi Kuroki, Yoshihiro Sakata, Tomomi Okumura, Atsushi Shibuya, Yuichi Okawa, Hideaki Oikawa, Kayako Yanagihara, Yasunori Yoshida, Masaji Yoshimura, Hiroyasu Kido, Shoji Tamai
  • Publication number: 20020049836
    Abstract: The present invention provides a communication system including: a communication network; and a plurality of terminal device connectable to the communication network for transmitting and receiving an information through the communication network wherein the communication system includes at least a table which provides at least a retrieval condition and at least a corresponding display method to the at least retrieval condition, so as to enable the terminal device to perform a retrieval to the information under the at least retrieval condition and to display the information in accordance with the at least corresponding display method.
    Type: Application
    Filed: October 22, 2001
    Publication date: April 25, 2002
    Inventor: Atsushi Shibuya
  • Publication number: 20010044326
    Abstract: In a method of calling functions by keyword detection in a portable communication terminal apparatus, a function provided for the portable communication terminal apparatus is registered in association with a predetermined work (keyword). When the registered keyword is extracted from character data displayed on the display screen of the portable communication terminal apparatus, the function registered in the portable communication terminal apparatus in association with the extracted keyword is called and executed. A portable communication terminal apparatus is also disclosed.
    Type: Application
    Filed: May 8, 2001
    Publication date: November 22, 2001
    Applicant: NEC Corporation
    Inventor: Atsushi Shibuya
  • Publication number: 20010005826
    Abstract: In a portable communication terminal having a voice communication control unit for performing voice communication and a data communication control unit for performing data communication, a message storing unit with a message of character data stored therein is provided and when receiving a call signal, the data communication control unit takes out the message of character data stored in the message storing unit to send an electronic mail including the message to the electronic mail address of a calling party.
    Type: Application
    Filed: December 26, 2000
    Publication date: June 28, 2001
    Inventor: Atsushi Shibuya
  • Patent number: 6103860
    Abstract: There is disclosed an organic optical component prepared from a resin essentially comprising one or more repetitive structural units selected from the group consisting of structures represented by general formula (1); ##STR1## wherein A is either of the groups below. ##STR2## This invention provides an organic optical component with excellent transparency, heat resistance and mechanical strength as well as a low birefringence. This invention also provides a novel aromatic polyamide with a low permitivity and excellent transparency, processability and thermal stability, besides excellent heat resistance inherent in an aromatic polyamide.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: August 15, 2000
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Wataru Yamashita, Tomomi Yoshimura, Atsushi Shibuya, Yoshihiro Sakata, Hideaki Oikawa, Masahiro Ohta
  • Patent number: 6080833
    Abstract: A low-birefringent organic optical component comprising a polymer prepared by polymerizing a racemic mixture of the monomer with an asymmetric spiro ring represented by general formula (1) as an essential ingredient; wherein ring A represents a monocyclic or polycyclic organic group, wherein two ring As are mutually bound each other via a spiro bond to form a spiro ring which has a molecular asymmetric structure; n is an integer of 0 to 10; X.sub.1 and Y.sub.1 are binding groups; and Z.sub.1 is a polymerization-active group. The component has excellent transparency, mechanical strength and heat resistance, as well as a low birefringence.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: June 27, 2000
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Atsuo Otsuji, Keisuke Takuma, Rihoko Suzuki, Tatsuhiro Urakami, Toshihiro Motoshima, Wataru Yamashita, Tomomi Yoshimura, Atsushi Shibuya, Yoshihiro Sakata, Hideaki Oikawa, Masahiro Ohta, Masanobu Ajioka, Masatoshi Takagi, Akio Karasawa
  • Patent number: D425149
    Type: Grant
    Filed: April 10, 1998
    Date of Patent: May 16, 2000
    Inventor: Atsushi Shibuya