Patents by Inventor Masanobu Maeda

Masanobu Maeda 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: 11626786
    Abstract: A vibration generator includes a housing; a vibrator; an elastic member that connects the housing and the vibrator; and a driver that causes the vibrator to vibrate. The elastic member includes a housing connection portion that is connected to the housing, a vibrator support portion that supports the vibrator, and a spring portion that connects the housing connection portion and the vibrator support portion. The housing connection portion and the vibrator support portion are in the same plane. The spring portion is formed so as to be approximately perpendicular to the housing connection portion and the vibrator support portion.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: April 11, 2023
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Masanobu Maeda, Katsutoshi Suzuki
  • Patent number: 11621622
    Abstract: A vibration generator includes a housing, a first vibrator, and a second vibrator. The first vibrator includes a hollow yoke having a through hole, a magnet disposed within the through hole of the yoke, and a first elastic support member. The second vibrator includes a coil disposed above or below the magnet within the through hole of the yoke, and a second elastic support member to which the coil is fixed and that is disposed to extend from the inside to the outside of the through hole of the yoke and that is fixed to the housing. The first vibrator vibrates at a first natural frequency in a direction connecting both side portions of the yoke. The second vibrator vibrates at a second natural frequency that is different from the first natural frequency, in the direction connecting the both side portions of the yoke.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: April 4, 2023
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Masanobu Maeda, Katsutoshi Suzuki
  • Publication number: 20220302813
    Abstract: A vibration generating device includes a housing, a vibrator including a magnet, and a resilient member between the housing and the vibrator. The vibration generating device includes a coil configured to generate a magnetic field that causes the vibrator to vibrate. The vibration generating device includes a bracket including a coil-mounting portion on which the coil is mounted. The housing includes bracket supports provided at ends of two opposing side surfaces among the four side surfaces of the housing, the ends being situated opposite ends, of the two opposing side surfaces, to which the bottom of the housing is connected. The bracket includes connection portions bonded to the respective bracket supports. The bracket supports of the housing and the connection portions of the bracket are connected together in a state in which the bracket is inserted into a space of the housing.
    Type: Application
    Filed: June 7, 2022
    Publication date: September 22, 2022
    Inventors: Masanobu MAEDA, Katsutoshi SUZUKI
  • Publication number: 20210067021
    Abstract: A vibration generator includes a housing, a first vibrator, and a second vibrator. The first vibrator includes a hollow yoke having a through hole, a magnet disposed within the through hole of the yoke, and a first elastic support member. The second vibrator includes a coil disposed above or below the magnet within the through hole of the yoke, and a second elastic support member to which the coil is fixed and that is disposed to extend from the inside to the outside of the through hole of the yoke and that is fixed to the housing. The first vibrator vibrates at a first natural frequency in a direction connecting both side portions of the yoke. The second vibrator vibrates at a second natural frequency that is different from the first natural frequency, in the direction connecting the both side portions of the yoke.
    Type: Application
    Filed: August 24, 2020
    Publication date: March 4, 2021
    Inventors: Masanobu MAEDA, Katsutoshi SUZUKI
  • Publication number: 20200366177
    Abstract: A vibration generator includes a housing; a vibrator; an elastic member that connects the housing and the vibrator; and a driver that causes the vibrator to vibrate. The elastic member includes a housing connection portion that is connected to the housing, a vibrator support portion that supports the vibrator, and a spring portion that connects the housing connection portion and the vibrator support portion. The housing connection portion and the vibrator support portion are in the same plane. The spring portion is formed so as to be approximately perpendicular to the housing connection portion and the vibrator support portion.
    Type: Application
    Filed: May 1, 2020
    Publication date: November 19, 2020
    Inventors: Masanobu MAEDA, Katsutoshi SUZUKI
  • Patent number: 9596307
    Abstract: A communication system includes: a plurality of mobile terminals; and a linked apparatus that works in concert with the plurality of mobile terminals. The linked apparatus is configured to establish a wireless connection to a selected one of the plurality of mobile terminals. The selected one of the plurality of mobile terminals is designated as a relaying apparatus that relays communications. The plurality of mobile terminals includes: a first mobile terminal that serves as the relaying apparatus before a change of selection of the relaying apparatus; and a second mobile terminal that serves as the relaying apparatus after the change of selection of the relaying apparatus.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: March 14, 2017
    Assignee: FUJITSU TEN LIMITED
    Inventors: Masashi Nakamura, Tadashi Ujino, Masanobu Maeda, Yohei Yokota
  • Patent number: 9505925
    Abstract: A phenol resin molding material includes a modified olefin-based polymer particle (I) and a phenol resin (II). It is preferable that the modified olefin-based polymer particle (I) satisfy at least one of the requirements (A), (B), and (C) which are defined as follows: (A) Inclusion of at least one element selected from a group consisting of a group 15 element, a group 16 element, and a group 17 element of the periodic table. (B) When the whole of the above-described olefin-based polymer particle (I) is set as 100 wt %, the content of the above-described elements is greater than or equal to 0.05 wt % and less than or equal to 50 wt %. (C) MFR which is measured under the conditions of 190° C. and 2.16 kgf based on JIS K 7210 is greater than or equal to 0.001 g/10 minutes and less than 3 g/10 minutes.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: November 29, 2016
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Takaharu Abe, Masanobu Maeda, Takahiro Yamada, Yasunori Yoshida
  • Patent number: 9294059
    Abstract: An acoustic device, which reproduces an acoustic signal of one acoustic source selected from a plurality of acoustic sources. A first averaging unit averages signal levels of the acoustic signal for a first time period to obtain a first average signal. A second averaging unit averages the signal levels for a second time period shorter than the first time period to obtain a second average signal. A selecting unit selects either the first average signal or the second average signal as one signal having a signal level higher than the other. A gain decreasing unit decreases a gain of the acoustic signal according to the signal level of the one signal if the signal level of the one signal is higher than a threshold value determined according to the one acoustic source. A correcting unit corrects the signal levels of the acoustic signal according to the gain.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: March 22, 2016
    Assignee: FUJITSU TEN LIMITED
    Inventors: Masahiko Kubo, Yuji Tomita, Masanobu Maeda, Nahoko Akai
  • Publication number: 20160014833
    Abstract: A communication system includes: a plurality of mobile terminals; and a linked apparatus that works in concert with the plurality of mobile terminals. The linked apparatus is configured to establish a wireless connection to a selected one of the plurality of mobile terminals. The selected one of the plurality of mobile terminals is designated as a relaying apparatus that relays communications. The plurality of mobile terminals includes: a first mobile terminal that serves as the relaying apparatus before a change of selection of the relaying apparatus; and a second mobile terminal that serves as the relaying apparatus after the change of selection of the relaying apparatus.
    Type: Application
    Filed: July 2, 2015
    Publication date: January 14, 2016
    Inventors: Masashi NAKAMURA, Tadashi UJINO, Masanobu MAEDA, Yohei YOKOTA
  • Publication number: 20150080519
    Abstract: A phenol resin molding material of the present invention includes a modified olefin-based polymer particle (I) and a phenol resin (II). Furthermore, it is preferable that the above-described modified olefin-based polymer particle (I) satisfy at least one of the following requirements (A), (B), and (C). (A) Inclusion of at least one element selected from a group consisting of a group 15 element, a group 16 element, and a group 17 element of the periodic table. (B) When the whole of the above-described olefin-based polymer particle (I) is set as 100 wt %, the content of the above-described elements is greater than or equal to 0.05 wt % and less than or equal to 50 wt %. (C) MFR which is measured under the conditions of 190° C. and 2.16 kgf based on JIS K 7210 is greater than or equal to 0.001 g/10 minutes and less than 3 g/10 minutes.
    Type: Application
    Filed: March 12, 2013
    Publication date: March 19, 2015
    Inventors: Takaharu Abe, Masanobu Maeda, Takahiro Yamada, Yasunori Yoshida
  • Patent number: 8892229
    Abstract: An audio apparatus according to an embodiment includes an audio signal receiving unit, a music gap signal receiving unit, a playback unit, and a determining unit. The audio signal receiving unit receives an audio signal in which successive multiple music data are contained in a single block of data. The determining unit determines a boundary of the music data on the basis of the time at which the music gap signal that indicates the boundary of the music data by the music gap signal receiving unit and the duration of a silent period in the audio signal that is played back by the playback unit.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: November 18, 2014
    Assignee: Fujitsu Ten Limited
    Inventors: Osamu Yasutake, Fumitake Nakamura, Nobutaka Miyauchi, Masanobu Maeda, Masahiko Kubo, Nahoko Kawamura, Machiko Matsui, Hideto Saitoh, Hiroyuki Kubota, Masayuki Takaoka, Masanobu Washio, Yutaka Nishioka
  • Patent number: 8728432
    Abstract: A method of producing a surface-treated carbon black powder dispersion includes subjecting carbon black fine particles having a volume average particle size of 100 nm to 20 ?m to wet granulation and drying by heating to obtain granulated carbon black having a hardness of 12 cN or less and a pH of less than 7, grinding the granulated carbon black to obtain a ground product having a volume average particle size of 20 nm to 20 ?m, and subjecting the ground product to wet oxidization in an aqueous medium. The resulting surface-treated carbon black powder dispersion exhibits excellent print density, print quality, discharge stability, and storage stability when used as an inkjet printer aqueous black ink.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: May 20, 2014
    Assignee: Tokai Carbon Co., Ltd.
    Inventors: Hironori Arai, Masanobu Maeda
  • Publication number: 20130101138
    Abstract: An acoustic device, which reproduces an acoustic signal of one acoustic source selected from a plurality of acoustic sources. A first averaging unit averages signal levels of the acoustic signal for a first time period to obtain a first average signal. A second averaging unit averages the signal levels for a second time period shorter than the first time period to obtain a second average signal. A selecting unit selects either the first average signal or the second average signal as one signal having a signal level higher than the other. A gain decreasing unit decreases a gain of the acoustic signal according to the signal level of the one signal if the signal level of the one signal is higher than a threshold value determined according to the one acoustic source. A correcting unit corrects the signal levels of the acoustic signal according to the gain.
    Type: Application
    Filed: April 19, 2011
    Publication date: April 25, 2013
    Applicant: FUJITSU TEN LIMITED
    Inventors: Masahiko Kubo, Yuji Tomita, Masanobu Maeda, Nahoko Akai
  • Publication number: 20120296459
    Abstract: An audio apparatus according to an embodiment includes an audio signal receiving unit, a music gap signal receiving unit, a playback unit, and a determining unit. The audio signal receiving unit receives an audio signal in which successive multiple music data are contained in a single block of data. The determining unit determines a boundary of the music data on the basis of the time at which the music gap signal that indicates the boundary of the music data by the music gap signal receiving unit and the duration of a silent period in the audio signal that is played back by the playback unit.
    Type: Application
    Filed: May 14, 2012
    Publication date: November 22, 2012
    Applicant: FUJITSU TEN LIMITED
    Inventors: Osamu YASUTAKE, Fumitake NAKAMURA, Nobutaka MIYAUCHI, Masanobu MAEDA, Masahiko KUBO, Nahoko KAWAMURA, Machiko MATSUI, Hideto SAITOH, Hiroyuki KUBOTA, Masayuki TAKAOKA, Masanobu WASHIO, Yutaka NISHIOKA
  • Publication number: 20120294461
    Abstract: Sound equipment is configured to average an average value of a signal level at each predetermined frequency band of a sound signal at a different averaging time, to weight the average value calculated at a different averaging time by using an individual weighting value, to obtain a representative value based on a weighted average value, to determine a gain of a sound signal based on an obtained representative value, to correct a volume based on the corresponding gain, and to correct a volume based on the gain. The representative value is obtained by selecting the average value at which a gain becomes minimum within each weighted average value. The averaging performs at least a first averaging using the averaging time corresponding to the sound signal that the signal level changes rapidly, and a second averaging using the averaging time longer than the averaging time of the first averaging.
    Type: Application
    Filed: May 11, 2012
    Publication date: November 22, 2012
    Applicant: FUJITSU TEN LIMITED
    Inventors: Masanobu MAEDA, Nobutaka MIYAUCHI, Fumitake NAKAMURA, Masahiko KUBO, Nahoko KAWAMURA, Machiko MATSUI, Hideto SAITOH, Hiroyuki KUBOTA, Masayuki TAKAOKA, Masanobu WASHIO, Yutaka NISHIOKA, Osamu YASUTAKE
  • Publication number: 20120288121
    Abstract: A DSP performs a sound volume adjustment processing that adjusts a playback sound volume in accordance with a signal level of acoustic data in acoustic contents. Further, when the DSP detects that the acoustic data is switched, the DSP initializes the adjustment to perform a reset processing that performs adjustment in accordance with the acoustic data which is a new playback target. When the changing instruction of the playback position of the acoustic data is accepted, an audio microcomputer instructs the DSP to perform the reset processing.
    Type: Application
    Filed: May 9, 2012
    Publication date: November 15, 2012
    Applicant: FUJITSU TEN LIMITED
    Inventors: Machiko MATSUI, Nobutaka MIYAUCHI, Masanobu MAEDA, Masahiko KUBO, Nahoko KAWAMURA, Fumitake NAKAMURA, Hideto SAITOH, Hiroyuki KUBOTA, Masayuki TAKAOKA, Masanobu WASHIO, Yutaka NISHIOKA, Osamu YASUTAKE
  • Publication number: 20120171104
    Abstract: A method of producing a surface-treated carbon black powder dispersion includes subjecting carbon black fine particles having a volume average particle size of 100 nm to 20 ?m to wet granulation and drying by heating to obtain granulated carbon black having a hardness of 12 cN or less and a pH of less than 7, grinding the granulated carbon black to obtain a ground product having a volume average particle size of 20 nm to 20 ?m, and subjecting the ground product to wet oxidization in an aqueous medium. The resulting surface-treated carbon black powder dispersion exhibits excellent print density, print quality, discharge stability, and storage stability when used as an inkjet printer aqueous black ink.
    Type: Application
    Filed: July 9, 2010
    Publication date: July 5, 2012
    Applicant: TOKAI CARBON CO., LTD.
    Inventors: Hironori Arai, Masanobu Maeda
  • Patent number: 8053378
    Abstract: A modified phenolic resin that is an alternate copolymer of at least one phenolic compound selected from phenol, naphthols, and their derivatives and a compound having a divalent connecting group, said modified phenolic resin having a side chain attached to an aromatic ring having a hydroxy group, said side chain being represented by defined formula (1-1). The modified phenolic resin can be used as a hardener for epoxy resins and a cured product thereof has excellent adhesion and flame retardancy without impairing properties of conventional phenolic resins such as gel time, glass transition temperature, moisture absorption, and mechanical properties. The epoxy resin composition can provide excellent adhesion and flame retardancy as hardeners for semiconductor sealing epoxy resins, insulating materials for electrical/electronic components, and laminates (printed circuit boards).
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: November 8, 2011
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Takaharu Abe, Sunao Maeda, Tatsuhiro Urakami, Yukio Fukui, Masanobu Maeda, Hiroaki Narisawa
  • Patent number: 8045736
    Abstract: The present invention is directed to providing a sound field reproduction system that can enhance the sound separation between the front and rear seats or left and right seats of a vehicle. The sound field reproduction system includes a control unit for creating a first sound signal and a second sound signal from one or a plurality of sources, a narrow-directional speaker mounted on the front seat side of the vehicle, a speaker mounted on the rear seat side of the vehicle, and a signal processing unit for driving the narrow-directional speaker based on the first sound signal that has been processed according to frequency range, and for driving the speaker based on the second sound signal.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: October 25, 2011
    Assignee: Fujitsu Ten Limited
    Inventors: Kiyosei Shibata, Masanobu Maeda
  • Publication number: 20090097679
    Abstract: To provide an acoustic system including: a sound-leakage reducing unit that generates control sound for negating sound leaked from another speaker in a second individual space to a first individual space based on a leak sound transfer function and an error path transfer function to provide the control sound; a virtual sound-source unit that generates a virtual sound source to form a sound image in front of a listener; a localization correcting unit that corrects rearward localization of the sound image formed by reproduction of the virtual sound source closer to the listener; and a dynamic presuming unit that provides the leak sound transfer function and the error path transfer function to the sound-leakage reducing unit, and provides the error path transfer function to the localization correcting unit.
    Type: Application
    Filed: October 8, 2008
    Publication date: April 16, 2009
    Applicant: FUJITSU TEN LIMITED
    Inventor: Masanobu Maeda