Patents by Inventor Takeshi Iwata

Takeshi Iwata 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: 7390957
    Abstract: An information processing apparatus comprises an operating member used for changing a sound volume, a display device which displays volume data of the sound volume changed in response to an operation of the operating member and a controller which changes the volume data. An indicator indicates level data changed in response to the operation of the operating member.
    Type: Grant
    Filed: October 13, 2005
    Date of Patent: June 24, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Takeshi Iwata
  • Publication number: 20080049965
    Abstract: A speaker device includes a terminal metal which is electrically connectible to a tinsel cord and a wiring, and a supporting body which includes a terminal metal mounting part on which the terminal metal is mounted. The terminal metal is mounted on the terminal metal mounting part. Thereby, the tinsel cord and the wiring can be electrically connected to each other via the terminal metal, without providing a terminal board. Thus, the number of parts can be reduced by the number of omitted terminal board, and the cost of the speaker device can be reduced.
    Type: Application
    Filed: August 24, 2007
    Publication date: February 28, 2008
    Applicants: PIONEER CORPORATION, TOHOKU PIONEER CORPORATION
    Inventor: Takeshi Iwata
  • Publication number: 20080036373
    Abstract: A platinum complex represented by the general formula (1) below, useful as a phosphorescence emission material, a tetradentate ligand useful for synthesizing the platinum complex, and a light-emitting device containing at least one of the platinum complex. wherein ring B represents a nitrogen-containing aromatic heterocyclic ring; rings A, C and D each independently represent an aromatic or aromatic heterocyclic ring, while either of the rings C and D represents five-membered ring, the other represents a five- or six-membered ring; RA, RB, RC, and RD respectively represent substituents on the rings A, B, C, and D; two of XA, XB, XC, and XD represent a nitrogen atom that may be bound with the platinum atom by a coordinate bond, the others each independently represent a carbon atom or nitrogen atom that may be bound with the platinum atom by a covalent bond; Q represents a bivalent atom or atomic group bridging the rings B and C; and YC and YD each independently represent a carbon atom or nitrogen atom.
    Type: Application
    Filed: August 8, 2007
    Publication date: February 14, 2008
    Inventors: Hisanori Itoh, Takeshi Iwata, Yoshimasa Matsushima
  • Publication number: 20070121990
    Abstract: It is an object of the present invention to provide an improved speaker device capable of restricting a wiring position of a speaker cord using a simple structure, reducing the number of parts necessary for use in speaker cord fixation. The speaker device of the present invention has a speaker unit, a frame structure having an attachment section for attaching the speaker unit to an attachment base. The frame structure has an attachment section for attaching the speaker unit to an attachment base, a fixing section (wiring position restricting means) for restricting the wiring position of the speaker cord led out from the speaker unit, on the frame structure by virtue of a damper member. The frame structure and the wiring position restricting means are formed by an identical material such as resin or metal. Therefore, it is possible to restrict the wiring position of the speaker cord using a simpler structure.
    Type: Application
    Filed: July 28, 2006
    Publication date: May 31, 2007
    Inventor: Takeshi Iwata
  • Publication number: 20070103060
    Abstract: Provision of a novel platinum complex which is useful as a material for a light-emitting device of good light emission characteristic and light emission efficiency, and a novel light-emitting material that may be utilized in various fields. A platinum complex represented by the following general formula (1): (in which two rings of ring A, ring B, ring C, and ring D represent nitrogen-containing heterocyclic rings which may have a substituent and the remaining two rings of them represent aryl rings or hetero aryl rings which may have a substituent, the ring A and the ring B, the ring A and the ring C or/and the ring B and the rind D may form condensed rings. Two of X1, X2, X3, and X4 represent nitrogen atoms coordination bonded to a platinum atom and the remaining two of them represent carbon atoms or nitrogen atoms.
    Type: Application
    Filed: October 27, 2004
    Publication date: May 10, 2007
    Applicant: TAKASAGO INTERNATIONAL CORPORATION
    Inventors: Hisanori Itoh, Yuji Nakayama, Takeshi Iwata, Yoshimasa Matsushima, Yoji Hori
  • Publication number: 20070025584
    Abstract: It is an object of the invention to provide an improved speaker device equipped with an attachment member having formed thereon a reinforcing portion capable of inhibiting a deterioration of a sound characteristic. Another object of the invention is to provide an improved speaker device capable of efficiently disposing in a limited space close to the speaker an electronic element for controlling a signal being supplied to the speaker. The speaker device comprises a speaker unit, an attachment member for attaching the speaker unit to an attachment base. The attachment member comprises an attachment portion for attaching the attachment member to the attachment base, an attachment hole for attaching the speaker unit, a convex reinforcing portion formed along an entire or partial circumference of the attachment hole of the attachment member. The reinforcing portion has an inclined surface formed on the inner side thereof facing the side wall of the speaker unit.
    Type: Application
    Filed: July 26, 2006
    Publication date: February 1, 2007
    Inventor: Takeshi Iwata
  • Publication number: 20060264625
    Abstract: A platinum complex represented by the following formula (1) or (2): wherein, ring A, ring B, ring C, ring D and ring G each independently represent an aromatic ring optionally having substituent(s) or an aromatic heterocyclic ring optionally having substituent (s); X represents an oxygen atom or a sulfur atom; R1 and R2 each independently represent a hydrogen atom or a substituent; the ring E and the ring F each independently represent a nitrogen-containing aromatic heterocyclic ring, and more R1 and the ring B, and also R2 and the ring B each may combine together to form a fused ring and that the ring E and the ring F may combine together to form a fused ring. The platinum complex is useful for a luminescent device of an organic EL device or the like, and can provide a device being extremely good in thermal stability, emission characteristics and power efficiency.
    Type: Application
    Filed: April 4, 2004
    Publication date: November 23, 2006
    Inventors: Yuji Nakayama, Takeshi Iwata, Yoshimasa Matsushima, Yoji Hori
  • Publication number: 20060210828
    Abstract: A light-emitting device such as an organic electroluminescent device is disclosed wherein a platinum complex represented by the following general formula: (wherein, rings A and B each independently represent an aromatic ring optionally having substituent (s) or an aromatic heterocyclic ring optionally having substituent (s); X represents an oxygen atom or a sulfur atom; R1, R2, R3and R4 each independently represent a hydrogen atom or a substituent; and more, R1 and R2, R2 and R3, and R3and R4 may respectively combine together to form a fused ring.) is used as a light-emitting layer material, a charge transporting material or the like.
    Type: Application
    Filed: April 23, 2004
    Publication date: September 21, 2006
    Inventors: Yuji Nakayama, Takeshi Iwata, Yoshimasa Matsushima, Yoji Hori, Shizuo Tokito, Toshimitsu Tsuzuki
  • Publication number: 20060202197
    Abstract: A platinum complex represented by the general formula 1, useful as a phosphorescence emission material, a tetradentate ligand useful for synthesizing the platinum complex, and a light-emitting device containing at least one of the platinum complex. In the general formula 1, two of the rings A, B, C, and D each independently represent an aromatic ring or an aromatic heterocyclic ring, while the other two rings each represent a nitrogen-containing heterocyclic ring; RA-D represent the substituents; each the rings A and B, the rings B and C, and the rings C and D may be bound to each other to form a fused ring independently via the substituent RA-D; XA-D each represent a carbon atom or nitrogen atom; Q represents a bivalent atom or atomic group; Y represents a carbon or nitrogen atom; and n is an integer of 0 to 3.
    Type: Application
    Filed: February 28, 2006
    Publication date: September 14, 2006
    Inventors: Yuji Nakayama, Hisanori Ito, Takeshi Iwata, Junji Nakamura, Yoshimasa Matsushima
  • Publication number: 20060196347
    Abstract: An information processing apparatus comprises an operating member used for changing a sound volume, a display device which displays volume data of the sound volume changed in response to an operation of the operating member and a controller which changes the volume data. An indicator indicates level data changed in response to the operation of the operating member.
    Type: Application
    Filed: October 13, 2005
    Publication date: September 7, 2006
    Inventor: Takeshi Iwata
  • Publication number: 20060005134
    Abstract: An information processing apparatus according to the present invention comprises a display device, a first and a second display controllers, and a switch means. The first display controller converts an externally input first video signal into a second video signal which can be displayed on the display device. The second display controller converts the first video signal into a third video signal which can be displayed on the display device. The switch means switches between a first path for outputting the second video signal converted by the first display controller to the display device, and a second path for outputting the third video signal converted by the second display controller to the display device.
    Type: Application
    Filed: March 17, 2005
    Publication date: January 5, 2006
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Takeshi Iwata
  • Publication number: 20050168638
    Abstract: According to one embodiment of the invention, an information processing apparatus comprises a memory which stores an operating system to be booted in response to a certain operation, a content output unit which outputs content data, and a display unit which displays content data output by the content output unit even though the boot of the operating system has not completed.
    Type: Application
    Filed: January 12, 2005
    Publication date: August 4, 2005
    Inventor: Takeshi Iwata
  • Patent number: 6865621
    Abstract: A computer comprises a medium drive configured to reproduce data recorded in a video recording medium and an audio recording medium. When a reproduction switch is turned on if the computer is not powered, it is determined whether the video recording medium or the audio recording medium is loaded. If the video recording medium is loaded, the operating system is activated and the reproduction application is also activated.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: March 8, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Takeshi Iwata
  • Patent number: 6774269
    Abstract: A process for producing l-isopulegol by simple operations with safety in high yield. A process for producing isopulegol, which comprises selectively cyclizing citronellal in the presence of a tris(2,6-diarylphenoxy)aluminum catalyst represented by the following general formula (3): wherein Al represents an aluminum atom, Ar1 and Ar2 each represent a substituted or unsubstituted aryl group or a heteroaryl group; and R1, R2 and R3 each represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 8 carbon atom(s), an alkoxy group having 1 to 8 carbon atom(s), a substituted or unsubstituted aryl group, a dialkylamino group having 1 to 4 carbon atom(s), or a nitro group.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: August 10, 2004
    Assignee: Takasago International Corporation
    Inventors: Takeshi Iwata, Yoshiki Okeda, Yoji Hori
  • Publication number: 20040022938
    Abstract: An object of the present invention is to provide a safe, convenient and efficient method for coating fine particles with lipid membrane.
    Type: Application
    Filed: July 3, 2003
    Publication date: February 5, 2004
    Inventors: Yasuki Kato, Masahiro Yamauchi, Hiroko Kusano, Takeshi Iwata, Takaaki Uochi, Shiro Akinaga
  • Publication number: 20020133046
    Abstract: A process for producing l-isopulegol by simple operations with safety in high yield.
    Type: Application
    Filed: January 15, 2002
    Publication date: September 19, 2002
    Applicant: Takasago International Corporation
    Inventors: Takeshi Iwata, Yoshiki Okeda, Yoji Hori
  • Publication number: 20010056509
    Abstract: A computer comprises a medium drive configured to reproduce data recorded in a video recording medium and an audio recording medium. When a reproduction switch is turned on if the computer is not powered, it is determined whether the video recording medium or the audio recording medium is loaded. If the video recording medium is loaded, the operating system is activated and the reproduction application is also activated.
    Type: Application
    Filed: March 12, 2001
    Publication date: December 27, 2001
    Applicant: Kabushiki Kaisha Toshiba
    Inventor: Takeshi Iwata
  • Patent number: 6236733
    Abstract: A loudspeaker has a frame, a magnetic circuit formed on the frame, a voice coil bobbin disposed in a magnetic gap of the magnetic circuit, and a diaphragm connected to the voice coil bobbin at an inner periphery and to the frame at an outer periphery thereof. The diaphragm is folded at a position between the inner and outer peripheries to form an annular ridge. The ridge is projected in an axially inner direction of the loudspeaker.
    Type: Grant
    Filed: June 3, 1999
    Date of Patent: May 22, 2001
    Assignees: Pioneer Electronic Corporation, Tohoku Pioneer Electronic Corporation
    Inventors: Toshifumi Kato, Satoshi Hachiya, Takeshi Iwata
  • Patent number: 5363818
    Abstract: In a valve operating apparatus comprising a drive rocker arm which is interposed between a cam shaft and at least an intake valve of intake and exhaust valves spring-biased in closing directions and which is operatively connected to the intake valve, a free rocker arm also interposed between the cam shaft and at least the intake valve and capable of being liberated from said intake valve, a connection switchover mechanism provided in said rocker arms and capable of switching-over the connection and disconnection of said rocker arms, and a lost motion mechanism provided in an engine body for resiliently biasing said free rocker arm toward the cam shaft, wherein said lost motion mechanism (38) is disposed in a support member (37) disposed above the cylinder head (2), and the free rocker arm (26) is disposed below the support member (37). This makes it possible to insure a sufficient space below the rocker arms (24 to 26).
    Type: Grant
    Filed: January 13, 1993
    Date of Patent: November 15, 1994
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Takeshi Iwata, Takatoshi Aoki
  • Patent number: 5209201
    Abstract: In an internal combustion engine comprising a valve operating system connected to a pair of intake valves and arranged to open one of the intake valves only in a very small amount such that the one intake valve is brought into its substantially inoperative state, in a suction stroke mainly in a low speed rotation region of the engine, a fuel injection valve capable of injecting fuel toward a pair of intake ports independently corresponding to the intake valves, and a control means for controlling the operation of the fuel injection valve, the control means is arranged to control the fuel injection valve with a fuel injection completion time determined within a suction stroke, when the one intake valve is in the substantially inoperative state.
    Type: Grant
    Filed: August 8, 1991
    Date of Patent: May 11, 1993
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Kaoru Horie, Kazutoshi Nishizawa, Takatoshi Aoki, Ryuji Matsukado, Chihaya Sugimoto, Takeshi Iwata