Patents by Inventor Koji Maekawa

Koji Maekawa 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: 20050254682
    Abstract: A damper having an annular elastic part is manufactured by stamping out a wire mesh material formed by weaving a plurality of metal wires into a net shape with a press device. The elastic part of the damper thus manufactured has a wire mesh structure. Thereby, a damper with high durability is obtained. Consequently, by applying this damper to the speaker device, the voice coil bobbin, a diaphragm and the like can be restrained/prevented from vibrating more than necessary even when an abnormal large signal is inputted into the speaker device.
    Type: Application
    Filed: May 11, 2005
    Publication date: November 17, 2005
    Applicants: PIONEER CORPORATION, TOHOKU PIONEER CORPORATION
    Inventors: Koji Maekawa, Toshihiro Ishigaki
  • Publication number: 20050160085
    Abstract: A distribution service to relay distributed information search is searched for (S6001). If no distribution service is detected, the distribution service is dynamically activated from the self host (S6003). Relay of search request information from remaining hosts is started, and the remaining hosts are registered in the management information (S6005).
    Type: Application
    Filed: December 20, 2004
    Publication date: July 21, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Shuji Ichikawa, Yuji Kobayashi, Tomonori Kudo, Daiki Suzuki, Masashi Takizawa, Koji Maekawa, Ken-ichi Abe
  • Publication number: 20050149509
    Abstract: A transmission path which transmits a search request between a plurality of information processing apparatuses is determined. Search request information containing pieces of information of the determined transmission path and a self host is transmitted. A search result obtained by searching for on the basis of the search request by the information processing apparatus which receives the search request information, and the search request information transmitted on the basis of the transmission path by the information processing apparatus are received.
    Type: Application
    Filed: December 20, 2004
    Publication date: July 7, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yuji Kobayashi, Daiki Suzuki, Tomonori Kudo, Masashi Takizawa, Shuji Ichikawa, Koji Maekawa, Ken-ichi Abe
  • Patent number: 6915071
    Abstract: A photographing and printing device includes a mode selecting section for selecting one mode as a selection mode among from a plurality of modes which are set in advance and a mood creating device (touch panel, lighting device, and speaker) for creating a mood in accordance with the selection mode. With this arrangement, controlling the mood creating device in accordance with the selection mode makes it possible to create a specific mood throughout the device in various ways.
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: July 5, 2005
    Assignee: Omron Corporation
    Inventors: Koji Maekawa, Yukiyasu Takao, Tadasu Maeda, Masanori Saito, Tsuneo Okada, Sachiro Arimoto, Masamichi Akima, Tetsuya Miwa
  • Publication number: 20050117766
    Abstract: A speaker unit in which an open end of each of acoustic tubes is disposed on an upper surface of a casing is produced. The speaker unit is mounted inside a seat, for example, to an upper position of an inside of a backrest of the seat via a connecting member or the like. Thereby, the open ends of the acoustic tubes are disposed at a position near both ears of a seated person. Since low-frequency sound can be reproduced to an area near both the ears of the seated person, so much output sound pressure level of the drive speaker is not needed. Therefore, a drive speaker of a small bore diameter can be applied to the speaker unit, and the speaker unit itself can be made compact and light. The speaker unit is mounted inside the backrest of the seat, for example, and it is not necessary to take the trouble to ensure a place for placing the speaker unit around the seat.
    Type: Application
    Filed: November 19, 2004
    Publication date: June 2, 2005
    Applicants: Pioneer Corporation, Tohoku Pioneer Corporation
    Inventors: Takeshi Ito, Tetsuya Onuma, Koji Maekawa, Toshihiro Tanno
  • Publication number: 20050111690
    Abstract: It is to consolidate the connecting structure of a vibration system of a speaker apparatus. A first diaphragm and a voice coil bobbin are connected by a connecting member. A second diaphragm attached to the first diaphragm is attached to the connecting member. Alternatively, reinforcing member is attached to the first diaphragm and the connecting member.
    Type: Application
    Filed: November 16, 2004
    Publication date: May 26, 2005
    Inventors: Tetsuya Onuma, Koji Maekawa
  • Publication number: 20050013459
    Abstract: In the vehicle speaker apparatus SP, a vehicle inner panel 12 having a speaker unit 2 attached thereto is arranged in a door panel 3 having an outer panel 11 and an inner trim 13. The attaching position of the speaker unit 2 is adjusted so as to cause the sound pressure applied by the sound issued from the speaker unit 2 upon propagation through a first acoustic space 21 between the outer panel 11 and the vehicle inner panel 12 to the vehicle inner panel 12 and the sound pressure applied upon propagation through a second acoustic space 22 between the vehicle inner panel 12 and the inner trim 13 to the vehicle inner panel 12 to mutually cancel, and so as to inhibit vibration within a frequency range from 20 Hz to 5 kHz from among vibrations of the vehicle inner panel 12.
    Type: Application
    Filed: July 16, 2004
    Publication date: January 20, 2005
    Inventor: Koji Maekawa
  • Publication number: 20040264710
    Abstract: A speaker apparatus to be mounted on a vehicle includes a speaker unit and a mounting device. The speaker unit has a frame. The mounting device mounts the frame of the speaker unit on a panel member of a vehicle body. The mounting device includes insulators, which prevent vibration, which is caused by operation of the speaker unit in any direction, from being transmitted to the panel member in any direction.
    Type: Application
    Filed: June 16, 2004
    Publication date: December 30, 2004
    Applicants: PIONEER CORPORATION, TOHUKU PIONEER CORPORATION
    Inventors: Koji Maekawa, Tetsuya Onuma, Takeshi Ito
  • Publication number: 20040120541
    Abstract: A loudspeaker apparatus is provided with a loudspeaker unit attached to an inner panel. The inner panel of the loudspeaker unit is provided with: an opening to which the loudspeaker unit is attached; a volume unit in which the loudspeaker unit is housed from the opening to form a closed space; and a groove passing through to the volume unit. The loudspeaker unit is housed in the volume unit, and a rear space of the loudspeaker unit in the volume unit is used as an acoustic volume unit of the loudspeaker unit.
    Type: Application
    Filed: November 14, 2003
    Publication date: June 24, 2004
    Applicants: PIONEER CORPORATION, TOHOKU PIONEER CORPORATION
    Inventors: Koji Maekawa, Tetsuya Onuma, Takeshi Ito
  • Publication number: 20040101154
    Abstract: A listening device for a hands-free system includes a bone conduction actuator and a holder for holding the actuator. The holder includes a first contact part for contacting the actuator to a body part, a second contact part protruded at a spaced apart location from the first contact part, and a pivot part between the first and second contact parts. The holder is supported such as to be rotatable around a shaft in the pivot part orthogonally to a plane containing the contact parts and the pivot part. Thus, provided is a listening device which uses a bone conduction actuator having a contact part which can be contacted to a surface of a human body with a constant and appropriate pressure so as to achieve a constant level of signal transmission irrespective of the differences in the shape of the body part or the movements of the user.
    Type: Application
    Filed: November 18, 2003
    Publication date: May 27, 2004
    Applicants: Pioneer Corporation, Tohoku Pioneer Corporation
    Inventor: Koji Maekawa
  • Publication number: 20040099436
    Abstract: A wire is obtained by winding a conductor on a center core obtained by twisting a plurality of core threads, and the surface of the conductor is covered with an insulator. As the conductor, a rectangular wire having a rectangular section is preferably used rather than a round wire with respect to volume occupation. The plurality of wires, e.g., three wires, constitute a wire rod. These three wires are twisted, woven, or bundled to form a wire rod. Three wire rods are twisted, woven, or bundled to form an electric cord. A loudspeaker uses the electric cord, and the electric cord is used as a signal input line for a voice coil.
    Type: Application
    Filed: November 18, 2003
    Publication date: May 27, 2004
    Applicant: PIONEER CORPORATION
    Inventors: Koji Maekawa, Hiroyuki Kobayashi
  • Patent number: 6740202
    Abstract: A speaker diaphragm is formed from a material combining a fiber-type material and a ceramic-type-coating agent including metal alkoxide, metal hydroxide, and a colloidal or fine-particulate inorganic substance. The combining process for the ceramic-type-coating agent is performed before or after the fiber-type material is formed into a shape of the diaphragm.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: May 25, 2004
    Assignees: Pioneer Corporation, Tohoku Pioneer Corporation, Nippan Kenkyujo Co., Ltd.
    Inventors: Toshihiro Ishigaki, Hideo Sekikawa, Koji Maekawa, Tomoyuki Shimada
  • Publication number: 20040028246
    Abstract: A speaker device includes an acoustic capacity unit; an acoustic pipe connected to the acoustic capacity unit; and a driving speaker attached to the acoustic capacity unit. The acoustic capacity unit and the acoustic pipe constitute the Helmholtz resonator, and resonate at a predetermined Helmholtz resonant frequency. On the other hand, the acoustic pipe itself has a resonant frequency. By setting the resonant frequency of the acoustic pipe to be 0.5 to 2.5 octaves higher than the Helmholtz resonant frequency, the speaker device can be obtained which outputs signals of continuous frequency band from the Helmholtz resonant frequency to the resonant frequency of the acoustic pipe.
    Type: Application
    Filed: March 27, 2003
    Publication date: February 12, 2004
    Inventors: Koji Maekawa, Hiroyuki Dohi
  • Publication number: 20040028397
    Abstract: A photographing and printing device includes a mode selecting section for selecting one mode as a selection mode among from a plurality of modes which are set in advance and a mood creating device (touch panel, lighting device, and speaker) for creating a mood in accordance with the selection mode. With this arrangement, controlling the mood creating device in accordance with the selection mode makes it possible to create a specific mood throughout the device in various ways.
    Type: Application
    Filed: May 29, 2003
    Publication date: February 12, 2004
    Inventors: Koji Maekawa, Yukiyasu Takao, Tadasu Maeda, Masanori Saito, Tsuneo Okada, Sachiro Arimoto, Masamichi Akima, Tetsuya Miwa
  • Publication number: 20040025755
    Abstract: To enhance a lower-band sound with ease, but with almost no increase in volume and weight, a mounting table provided with a speaker is provided. This speaker-provided mounting table comprises a pedestal, a hollow-shaped support member for supporting the pedestal, and a speaker unit being equipped with the speaker and being attached on the support member. The support member is configured to function as an acoustic pipe or an acoustic capacity as well as supporting the pedestal.
    Type: Application
    Filed: June 26, 2003
    Publication date: February 12, 2004
    Inventors: Koji Maekawa, Hiroyuki Dohi
  • Patent number: 6681025
    Abstract: An electromechanical and electroacoustic transducer is compact and has a simple drive circuit. Two independent magnetic circuits share a single permanent magnet. A voice coil is placed in one of the magnetic circuits, and a magnetic weight is placed in the other magnetic circuit. A switching element is turned on and off upon movements of the magnetic weight.
    Type: Grant
    Filed: February 7, 2002
    Date of Patent: January 20, 2004
    Assignees: Pioneer Corporation, Tohoku Pioneer Corporation
    Inventor: Koji Maekawa
  • Publication number: 20030218772
    Abstract: The invention aims to enable a plurality of users to perform photography suited to the tastes of the respective users. An image printing apparatus and a server are connected to one another via a network. The image printing apparatus transmits transmission information for requesting delivery of predetermined contents (for example, photographed pose image data, BGM data and narration data), to the server via the network. The server delivers reception information including the contents requested by the transmission information to the image printing apparatus via the network. The invention is applicable to, for example, an image printing apparatus represented by Print Club (trademark).
    Type: Application
    Filed: March 28, 2003
    Publication date: November 27, 2003
    Inventors: Koji Maekawa, Katsuyuki Inage, Tadasu Maeda, Naoto Shiki
  • Publication number: 20030152376
    Abstract: An automatic photograph seal vending method comprising providing a photographing process for creating a photographed picture image or images, wherein an illumination means illuminates one or more subjects in a photographing space and a photographing means takes a photograph; providing an editing process for creating an edited picture image or images, wherein an editing means edits a picture image or images as an object of editing; using an output means to output a predetermined picture image or images; and using a large-sized display means capable of displaying the one or more subjects substantially in life size to display tie predetermined picture image or images to facilitate the photographing process and/or the editing process.
    Type: Application
    Filed: December 20, 2002
    Publication date: August 14, 2003
    Inventors: Tadasu Maeda, Hiroshi Funakoshi, Koji Maekawa, Tsuneo Okada, Masanori Saito, Sachiro Arimoto, Masahiko Taniguchi, Yukiyasu Takao
  • Publication number: 20030152245
    Abstract: A chair equipped the a speaker is provided with a frame that forms the structural skeleton of the chair, and a speaker unit that is installed to the frame; and wherein hollow pipe is used for the frame, and furthermore wherein the frame functions as an acoustical resonating section or acoustical space for the speaker.
    Type: Application
    Filed: January 16, 2003
    Publication date: August 14, 2003
    Applicant: PIONEER CORPORATION
    Inventors: Koji Maekawa, Hiroyuki Dohi
  • Publication number: 20020140136
    Abstract: A speaker diaphragm is formed from a material combining a fiber-type material and a ceramic-type-coating agent including metal alkoxide, metal hydroxide, and a colloidal or fine-particulate inorganic substance. The combining process for the ceramic-type-coating agent is performed before or after the fiber-type material is formed into a shape of the diaphragm.
    Type: Application
    Filed: March 29, 2002
    Publication date: October 3, 2002
    Applicant: PIONEER CORPORATION
    Inventors: Toshihiro Ishigaki, Hideo Sekikawa, Koji Maekawa, Tomoyuki Shimada