Patents by Inventor Hiroyuki Akatsu

Hiroyuki Akatsu 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: 9043006
    Abstract: An audio setting application of a smart phone acquires tuning data from a tuning data setting server, which meets a search condition specified by a user. The audio setting application performs filtering of tuning parameters included in the tuning data. The tuning parameters are parameters of a plurality of acoustic characteristic items of an audio apparatus, and such parameters are excluded if the parameter cannot be expected to achieve an appropriate effect when the parameter is applied to the audio apparatus.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: May 26, 2015
    Assignee: Alpine Electronics, Inc.
    Inventor: Hiroyuki Akatsu
  • Patent number: 8655696
    Abstract: A system includes a structure information obtaining unit which obtains structure information containing information on components of a development target in a project and on dependency relationships between the components, the structure information described, e.g., in SysML, a work item determining unit which determines work items and a work execution order based on the structure information obtained by the structure information obtaining unit; a detailed item determining unit; a date scheduling unit and a WBS storage which manages the determined work items and work execution order as work schedule definition information. The work item determining unit determines a work item related to a leaf component, which is a component not including any other component, and determines, in a case where all of the multiple components included in a single predetermined component are leaf components, a work item related to a coupling relationship between the leaf components.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: February 18, 2014
    Assignee: International Business Machines Corporation
    Inventors: Hiroyuki Akatsu, Atsushi Fukuda, Takashi Nerome, Masayuki Numao
  • Publication number: 20140031962
    Abstract: An audio setting application of a smart phone acquires tuning data from a tuning data setting server, which meets a search condition specified by a user. The audio setting application performs filtering of tuning parameters included in the tuning data. The tuning parameters are parameters of a plurality of acoustic characteristic items of an audio apparatus, and such parameters are excluded if the parameter cannot be expected to achieve an appropriate effect when the parameter is applied to the audio apparatus.
    Type: Application
    Filed: July 1, 2013
    Publication date: January 30, 2014
    Inventor: Hiroyuki Akatsu
  • Patent number: 8396823
    Abstract: An automatic designing system includes: a rule storage unit storing sets of rewrite rules for rewriting variable nodes of a hierarchically structured graph in a design architecture for the system; a search unit sequentially determining variable nodes as application targets for the rewrite rules by searching the graph, including components in the design architecture for the system to be designed, using a search tree; a judgment unit judging whether the rewrite rule is applicable to the determined variable node; and a rule application unit replacing the determined variable node with a partial graph, including at least one of fixed and variable nodes, according to the rewrite rule, in response to a judgment that the rewrite rule is applicable. The search unit performs the searching until an undefined variable node no longer exists in the graph to be designed, and performs backtracking on condition that no variable node is found.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: March 12, 2013
    Assignee: International Business Machines Corporation
    Inventors: Hiroyuki Akatsu, Hisashi Miyashita, Hiroaki Nakamura, Takashi Nerome
  • Patent number: 7974866
    Abstract: A system and method for managing a workflow are provided.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: July 5, 2011
    Assignee: International Business Machines Corporation
    Inventors: Hiroyuki Akatsu, Kenji Eda, Yo Murai, Teruaki Okano, Yasuharu Yada, Masao Yamada
  • Publication number: 20100332444
    Abstract: An automatic designing system includes: a rule storage unit storing sets of rewrite rules for rewriting variable nodes of a hierarchically structured graph in a design architecture for the system; a search unit sequentially determining variable nodes as application targets for the rewrite rules by searching the graph, including components in the design architecture for the system to be designed, using a search tree; a judgment unit judging whether the rewrite rule is applicable to the determined variable node; and a rule application unit replacing the determined variable node with a partial graph, including at least one of fixed and variable nodes, according to the rewrite rule, in response to a judgment that the rewrite rule is applicable. The search unit performs the searching until an undefined variable node no longer exists in the graph to be designed, and performs backtracking on condition that no variable node is found.
    Type: Application
    Filed: June 29, 2010
    Publication date: December 30, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Hiroyuki Akatsu, Hisashi Miyashita, Hiroaki Nakamura, Takashi Nerome
  • Patent number: 7615457
    Abstract: A method is provided for making a bipolar transistor which includes a tapered, i.e. frustum-shaped, collector pedestal having an upper substantially planar surface, a lower surface, and a slanted sidewall extending between the upper surface and the lower surface, the upper surface having substantially less area than the lower surface. The collector pedestal can be formed on a surface of a collector active region exposed within an opening extending through first and second overlying dielectric regions, where the opening defines vertically aligned edges of the first and second dielectric regions.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: November 10, 2009
    Assignee: International Business Machines Corporation
    Inventors: Hiroyuki Akatsu, Rama Divakaruni, Gregory G. Freeman, David R. Greenberg, Marwan H. Khater, William R. Tonti
  • Patent number: 7601646
    Abstract: Manufacturing yield of integrated circuits having differentiated areas such as array and support areas of a memory is improved by reducing height/step height difference between structures in the respective differentiated areas and is particularly effective in conjunction with top-oxide-early (TOE) and top-oxide-late processes. A novel planarization technique avoids damage of active devices, isolation structures and the like due to scratching, chipping or dishing which is particularly effective to improve manufacturing yield using TON processes and also using TOE and TOL processes when average height/step height is substantially equalized. Alternative mask materials such as polysilicon may also be used to simplify and/or improve control of processes.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: October 13, 2009
    Assignee: International Business Machines Corporation
    Inventors: Deok-kee Kim, Ramachandra Divakaruni, Hiroyuki Akatsu, George Worth, Jay Strane, Byeong Kim
  • Publication number: 20090192859
    Abstract: A system includes a structure information obtaining unit which obtains structure information containing information on components of a development target in a project and on dependency relationships between the components, the structure information described, e.g., in SysML, a work item determining unit which determines work items and a work execution order based on the structure information obtained by the structure information obtaining unit; a detailed item determining unit; a date scheduling unit and a WBS storage which manages the determined work items and work execution order as work schedule definition information. The work item determining unit determines a work item related to a leaf component, which is a component not including any other component, and determines, in a case where all of the multiple components included in a single predetermined component are leaf components, a work item related to a coupling relationship between the leaf components.
    Type: Application
    Filed: January 15, 2009
    Publication date: July 30, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Hiroyuki AKATSU, Atsushi FUKUDA, Takashi NEROME, Masayuki NUMAO
  • Publication number: 20080318373
    Abstract: A method is provided for making a bipolar transistor which includes a tapered, i.e. frustum-shaped, collector pedestal having an upper substantially planar surface, a lower surface, and a slanted sidewall extending between the upper surface and the lower surface, the upper surface having substantially less area than the lower surface. The collector pedestal can be formed on a surface of a collector active region exposed within an opening extending through first and second overlying dielectric regions, where the opening defines vertically aligned edges of the first and second dielectric regions.
    Type: Application
    Filed: July 25, 2008
    Publication date: December 25, 2008
    Applicant: International Business Machines Corporation
    Inventors: Hiroyuki Akatsu, Rama Divakaruni, Gregory G. Freeman, David R. Greenberg, Marwan H. Khater, William R. Tonti
  • Patent number: 7462547
    Abstract: A method is provided for fabricating a bipolar transistor that includes growing an epitaxial layer onto an underlaying region having a low dopant concentration and a trench isolation region defining the edges of an active region layer, implanting a portion of the epitaxial layer through a mask to define a collector region having a relatively high dopant concentration, the collector region laterally adjoining a second region of the epitaxial layer having the low dopant concentration; forming an intrinsic base layer overlying the collector region and the second region, the intrinsic base layer including an epitaxial region in conductive communication with the collector region; forming a low-capacitance region laterally separated from the collector region by the second region, the low-capacitance region including a dielectric region disposed in an undercut directly underlying the intrinsic base layer; and forming an emitter layer overlying the intrinsic base layer.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: December 9, 2008
    Assignee: International Business Machines Corporation
    Inventors: Hiroyuki Akatsu, Rama Divakaruni, Marwan Khater, Christopher M. Schnabel, William Tonti
  • Patent number: 7425754
    Abstract: A bipolar transistor is provided which includes a tapered, i.e. frustum-shaped, collector pedestal having an upper substantially planar surface, a lower surface, and a slanted sidewall extending between the upper surface and the lower surface, the upper surface having substantially less area than the lower surface. The bipolar transistor further includes an intrinsic base overlying the upper surface of the collector pedestal, a raised extrinsic base conductively connected to the intrinsic base and an emitter overlying the intrinsic base. In a particular embodiment, the emitter is self-aligned to the collector pedestal, having a centerline which is aligned to the centerline of the collector pedestal.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: September 16, 2008
    Assignee: International Business Machines Corporation
    Inventors: Hiroyuki Akatsu, Rama Divakaruni, Gregory G. Freeman, David R. Greenberg, Marwan H. Khater, William R. Tonti
  • Publication number: 20080052144
    Abstract: A system and method for managing a workflow are provided.
    Type: Application
    Filed: July 11, 2007
    Publication date: February 28, 2008
    Inventors: Hiroyuki Akatsu, Kenji Eda, Yo Murai, Teruaki Okano, Yasuharu Yada, Masao Yamada
  • Publication number: 20070096259
    Abstract: A method is provided for fabricating a bipolar transistor in which a collector layer is formed which includes an active portion having a relatively high dopant concentration and a second portion which has a lower dopant concentration. An epitaxial intrinsic base layer is formed to overlie the collector layer in conductive communication with the active portion of the collector layer. A low-capacitance region is formed laterally adjacent to the second portion of the collector layer, the low-capacitance region including a dielectric region disposed in an undercut directly underlying the intrinsic base layer. An emitter layer is formed to overlie the intrinsic base layer.
    Type: Application
    Filed: December 4, 2006
    Publication date: May 3, 2007
    Inventors: Hiroyuki Akatsu, Rama Divakaruni, Marwan Khater, Christopher Schnabel, William Tonti
  • Patent number: 7190046
    Abstract: Structure and method are provided for forming a bipolar transistor. As disclosed, an intrinsic base layer is provided overlying a collector layer. A low-capacitance region is disposed laterally adjacent the collector layer. The low-capacitance region includes at least one of a dielectric region and a void disposed in an undercut underlying the intrinsic base layer. An emitter layer overlies the intrinsic base layer, and a raised extrinsic base layer overlies the intrinsic base layer.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: March 13, 2007
    Assignee: International Business Machines Corporation
    Inventors: Hiroyuki Akatsu, Rama Divakaruni, Marwan Khater, Christopher M. Schnabel, William Tonti
  • Publication number: 20060019443
    Abstract: Manufacturing yield of integrated circuits having differentiated areas such as array and support areas of a memory is improved by reducing height/step height difference between structures in the respective differentiated areas and is particularly effective in conjunction with top-oxide-early (TOE) and top-oxide-late processes. A novel planarization technique avoids damage of active devices, isolation structures and the like due to scratching, chipping or dishing which is particularly effective to improve manufacturing yield using TON processes and also using TOE and TOL processes when average height/step height is substantially equalized. Alternative mask materials such as polysilicon may also be used to simplify and/or improve control of processes.
    Type: Application
    Filed: July 21, 2004
    Publication date: January 26, 2006
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Deok-kee Kim, Ramachandra Divakaruni, Hiroyuki Akatsu, George Worth, Jay Strane, Byeong Kim
  • Patent number: 6967136
    Abstract: A method is provided for making a trench capacitor by forming a trench in a substrate. The trench is then widened and a sacrificial collar is formed on sidewalls of the widened trench. The trench is then vertically deepened to extend below the sidewalls of the sacrificial collar. Subsequently, a capacitor is formed in the trench below the sacrificial collar. An integrated circuit includes a deep trench structure formed in a single-crystal region of a semiconductor substrate including an upper trench portion, the upper trench portion having an opening of rectangular shape. A lower trench portion is formed below the upper trench portion. The lower portion may be widened to have a bottle shape. Alternatively, the upper trench portion may be widened relative to the lower trench portion.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: November 22, 2005
    Assignee: International Business Machines Corporation
    Inventors: Hiroyuki Akatsu, Kangguo Cheng, Kenneth Settlemyer
  • Patent number: 6957589
    Abstract: The present invention provides a temperature compensator for a torque sensor, including a pair of coils, which are connected to an AC power supply circuit via transistors and in which inductances change in opposite directions depending on torque, and a torque detecting means which obtains a voltage difference between a first voltage and a second voltage output via smoothing circuits based on changes in inductance of each pair of coils, and outputs as a torque detection voltage, the temperature compensator having a correcting voltage extracting means for extracting a voltage between terminals of a transistor in the AC power supply circuit as a temperature correcting voltage, and a correcting means for correcting the torque detection voltage based on a temperature correcting voltage Vs extracted by the correcting voltage extracting means.
    Type: Grant
    Filed: August 13, 2003
    Date of Patent: October 25, 2005
    Assignee: Showa Corporation
    Inventors: Takayuki Ueno, Hiroyuki Akatsu
  • Publication number: 20050212087
    Abstract: Structure and method are provided for forming a bipolar transistor. As disclosed, an intrinsic base layer is provided overlying a collector layer. A low-capacitance region is disposed laterally adjacent the collector layer. The low-capacitance region includes at least one of a dielectric region and a void disposed in an undercut underlying the intrinsic base layer. An emitter layer overlies the intrinsic base layer, and a raised extrinsic base layer overlies the intrinsic base layer.
    Type: Application
    Filed: March 29, 2004
    Publication date: September 29, 2005
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Hiroyuki Akatsu, Rama Divakaruni, Marwan Khater, Christopher Schnabel, William Tonti
  • Publication number: 20050184359
    Abstract: A bipolar transistor is provided which includes a tapered, i.e. frustum-shaped, collector pedestal having an upper substantially planar surface, a lower surface, and a slanted sidewall extending between the upper surface and the lower surface, the upper surface having substantially less area than the lower surface. The bipolar transistor further includes an intrinsic base overlying the upper surface of the collector pedestal, a raised extrinsic base conductively connected to the intrinsic base and an emitter overlying the intrinsic base. In a particular embodiment, the emitter is self-aligned to the collector pedestal, having a centerline which is aligned to the centerline of the collector pedestal.
    Type: Application
    Filed: February 25, 2004
    Publication date: August 25, 2005
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Hiroyuki Akatsu, Rama Divakaruni, Gregory Freeman, David Greenberg, Marwan Khater, William Tonti