Patents by Inventor Hitoshi Ishida

Hitoshi Ishida 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: 20130002542
    Abstract: With respect to a coordinate designation device capable of detecting simultaneous operational input for a plurality of coordinates, occurrences of erroneous operations during textual input, etc., are suppressed. An elapsed time from a previous up operation up to a new down operation is calculated, and, if the calculated elapsed time is equal to or less than a threshold, an event for the input information is issued at the detected coordinates of the down operation. In addition, a traveled distance from coordinates at the time of starting input up to the current coordinates is calculated, and, if the calculated traveled distance is equal to or greater than a threshold, an event for the input start point is issued at the coordinates at the time of starting input.
    Type: Application
    Filed: February 22, 2011
    Publication date: January 3, 2013
    Applicant: HITACHI SOLUTIONS, LTD.
    Inventor: Hitoshi Ishida
  • Publication number: 20120314665
    Abstract: In the case where a base station other than of a distributed antenna system provides a time or frequency at which a transmitted power is low, an antenna group configuration unit estimates a communication area of a mobile station using an uplink reference signal that the mobile station transmits, calculates an inter-system interference power for the communication area of each mobile station based on a received power of the out-of-system base station that the each mobile station reports, calculates the inter-system interference power to each of antennas by averaging the inter-system interference powers that the multiple mobile stations report, and decides antennas that form an antenna group according to magnitudes of the calculated inter-system interference powers.
    Type: Application
    Filed: June 5, 2012
    Publication date: December 13, 2012
    Applicant: Hitachi, Ltd.
    Inventors: Hitoshi ISHIDA, Kenzaburo Fujishima, Yunjian Jia
  • Publication number: 20120243513
    Abstract: To secure a constant level or more of radio communication quality for each user equipment performing radio communication with a base station apparatus, and to increase the number of user equipment which the base station apparatus can accommodate under a condition of assuring the radio communication quality. In a radio communication system where there exist a base station apparatus having multiple antennas and user equipment for performing radio communication with a first antenna group including one or more of the antennas, the first antenna group is made configurable for each user equipment individually, and addition/deletion of the antenna to/from the first antenna group is performed based on the communication quality of each user equipment so that the number of antennas within the first antenna group may be minimized within a range satisfying a required value of the communication quality between the base station apparatus ad the user equipment.
    Type: Application
    Filed: February 3, 2012
    Publication date: September 27, 2012
    Applicant: HITACHI, LTD.
    Inventors: Kenzaburo Fujishima, Tsuyoshi Tamaki, Yunjian Jia, Hitoshi Ishida
  • Publication number: 20120208581
    Abstract: Disclosed is a distributed antenna system that selects an antenna in accordance with the position of a mobile terminal and reduces the variation in the total number of mobile terminals using each antenna while maintaining adequate communication quality. In the distributed antenna system in which a large number of antennas are distributively disposed, an antenna group including antennas having good communication quality is selected in accordance with the position of a mobile terminal. Further, in accordance with the communication quality and load status of a current antenna group and with the communication quality and load status of a post-change antenna group, which is obtained by changing some antennas in the current antenna group, the post-change antenna group is formed by changing some antennas in the current antenna group with which a mobile terminal using a heavily loaded antenna communicates.
    Type: Application
    Filed: January 27, 2012
    Publication date: August 16, 2012
    Applicant: HITACHI, LTD.
    Inventors: Hitoshi ISHIDA, Kenzaburo FUJISHIMA, Yunjian JIA
  • Publication number: 20120029183
    Abstract: Provided are a sulfated C-glycoside which is a novel compound serving as a precursor of chafuroside and chafuroside analogs; a method for efficiently producing the sulfated C-glycoside; and a method for efficiently producing chafuroside and chafuroside analogs using said sulfated C-glycoside. A sulfated C-glycoside represented by general formula (A1) or (B1) [wherein R1, R2 and R3 independently represent each a hydrogen atom or an OH group] is obtained by extracting tea leaves or tea tannins with water, a lower alcohol solvent having 1 to 3 carbon atoms or a liquid mixture comprising the same. Alternatively, the sulfated C-glycoside is produced by reacting a flavone C-glycoside such as isovitexin or vitexin with a sulfate group-introducing agent to thereby sulfate the flavone C-glycoside. By heating the sulfated C-glycoside thus obtained, chafuroside and chafuroside analogs are efficiently produced.
    Type: Application
    Filed: December 25, 2009
    Publication date: February 2, 2012
    Inventor: Hitoshi Ishida
  • Publication number: 20110010028
    Abstract: A boat propelling system capable of determining an abnormality regarding steering of a propelling system main body includes an outboard engine main body, a steering section arranged to steer the outboard engine main body, a steering angle sensor arranged to detect a steering angle of the steering section, a pivot sensor arranged to detect an actual pivot angle of the outboard engine main body, and an ECU. The ECU calculates a target pivot angle change amount based on a target pivot angle derived from the steering angle and a baseline target pivot angle, calculates an actual pivot angle change amount based on the actual pivot angle and a baseline actual pivot angle, and obtains a gap amount between the target pivot angle change amount and the actual pivot angle change amount. Then, the ECU determines an abnormality regarding steering of the outboard engine main body based on a result of comparison between the gap amount and the first threshold value.
    Type: Application
    Filed: July 8, 2010
    Publication date: January 13, 2011
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Makoto MIZUTANI, Hitoshi ISHIDA
  • Publication number: 20100225967
    Abstract: A relay station 200 constructs an infrastructure wireless network 200L. A printing device 100 requests new participation in the wireless network 200L. When preset conditions are satisfied, for example, when the user has pressed a push button 201 provided on the relay station 200, the relay station 200 establishes temporary wireless communication with the printing device 100 and changes an SSID of the printing device 100 to an SSID of the relay station 200. In this manner, this arrangement readily changes the configuration information of the printing device 100.
    Type: Application
    Filed: May 12, 2010
    Publication date: September 9, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Susumu SHIOHARA, Hitoshi Ishida, Tatsuya Kiyono
  • Patent number: 7747219
    Abstract: A relay station 200 constructs an infrastructure wireless network 200L. A printing device 100 requests new participation in the wireless network 200L. When preset conditions are satisfied, for example, when the user has pressed a push button 201 provided on the relay station 200, the relay station 200 establishes temporary wireless communication with the printing device 100 and changes an SSID of the printing device 100 to an SSID of the relay station 200. In this manner, this arrangement readily changes the configuration information of the printing device 100.
    Type: Grant
    Filed: January 6, 2005
    Date of Patent: June 29, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Susumu Shiohara, Hitoshi Ishida, Tatsuya Kiyono
  • Patent number: 7528687
    Abstract: A filtering device is disclosed that can be made compact and has wide-band band-pass characteristics. The filtering device includes a first filtering unit that is composed of a distributed constant circuit and is capable of eliminating a first frequency component or a second frequency component wherein the second frequency being higher than the first frequency, and a second filtering unit that attenuates components of frequencies lower than the first frequency or components of frequencies higher than the second frequency.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: May 5, 2009
    Assignees: Fujitsu Component Limited, Tokyo Institute of Technology
    Inventors: Hiroto Inoue, Shigemi Kurashima, Takuya Uchiyama, Masahiro Yanagi, Takashi Arita, Kiyomichi Araki, Hitoshi Ishida
  • Patent number: 7443271
    Abstract: In order to provide a band pass filter for high wavelength which has a wideband, small insertion loss and flat passband and obtains steep attenuation, a plurality of ring filters, in which, an input terminal of a high-frequency signal is provided to an arbitrary point on a line in a microstripline ring resonator having the line with one wavelength at electrical length, an output terminal is provided to a point positioned at a half wavelength at electrical length from the input terminal, a open stub of ¼ wavelength at electrical length (or ½ wavelength short stub) is connected to a point positioned at ¼ wavelength at electrical length from the input terminal, are connected by cascade connection with attenuation pole frequencies being different.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: October 28, 2008
    Assignee: The Circle for the Promotion of Science and Engineering
    Inventors: Kiyomichi Araki, Hitoshi Ishida, Takao Nakagawa
  • Patent number: 7367211
    Abstract: A forging device includes a die having an axis extending generally vertically. A work is placed in the die along the axis. First and second punches extend coaxially with the die and can interpose the work therebetween. A pressurizing section pressurizes the first and second punches toward the work generally simultaneously.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: May 6, 2008
    Assignee: Createch Co., Ltd.
    Inventor: Hitoshi Ishida
  • Patent number: 7266608
    Abstract: This invention provides an apparatus for sending and receiving serial data without losing the real time characteristics even in case of a plurality of errors. According to this invention, an overhead of the communication can be reduced, and the time for the communication can be reduced. In a system for sending and receiving serial data between a primary station and a secondary station by sending a polling request and a refresh request through a serial transmission bus in determined time, the primary station retries a polling request and a refresh request to the secondary station which has not responded normally in the same determined time after sending the polling request and the refresh request.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: September 4, 2007
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hitoshi Ishida, Minoru Shiga
  • Publication number: 20070111318
    Abstract: A novel shellfish neurotoxin is provided. The present invention provides a novel shellfish neurotoxin represented by formula (I), a method for synthesizing that component, and a method for detecting the principal component of that shellfish neurotoxin to investigate the production of shellfish neurotoxin by using that shellfish neurotoxin component.
    Type: Application
    Filed: November 26, 2004
    Publication date: May 17, 2007
    Inventor: Hitoshi Ishida
  • Publication number: 20070063794
    Abstract: In order to provide a band pass filter for high wavelength which has a wideband, small insertion loss and flat passband and obtains steep attenuation, a plurality of ring filters, in which, an input terminal of a high-frequency signal is provided to an arbitrary point on a line in a microstripline ring resonator having the line with one wavelength at electrical length, an output terminal is provided to a point positioned at a half wavelength at electrical length from the input terminal, a open stub of ¼ wavelength at electrical length (or ½ wavelength short stub) is connected to a point positioned at ¼ wavelength at electrical length from the input terminal, are vertically connected with attenuation pole frequencies being different.
    Type: Application
    Filed: February 20, 2004
    Publication date: March 22, 2007
    Inventors: Kiyomichi Araki, Hitoshi Ishida, Takao Nakagawa
  • Patent number: 7131174
    Abstract: A method of production of a ceramic electronic device such as a multilayer ceramic capacitor, comprising forming a first ceramic coating layer on the surface of a substrate, forming an internal electrode on the surface of the first ceramic coating layer, then forming a second ceramic coating layer on the surface of the first ceramic coating layer so as to cover the internal electrode. In this case, when a mean particle size of ceramic particles of the first ceramic coating layer is ?1, a thickness of the first ceramic coating layer is T1, a mean particle size of ceramic particles of the second ceramic coating layer is ?2, and a thickness of the second ceramic coating layer is T2, the conditions of ?1??2, 0.05<?1?0.35 ?m, T1<T2, and 0<T1<1.5 ?m are satisfied. As a result, it is possible to provide a ceramic electronic device, in particular a multilayer ceramic capacitor, resistant to short-circuit defects, withstand voltage defects, and other structural defects.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: November 7, 2006
    Assignee: TDK Corporation
    Inventors: Ryou Kobayashi, Kaname Ueda, Yasushi Izumibe, Hitoshi Ishida, Akira Saitoh
  • Publication number: 20060242833
    Abstract: A gear structure including an annular gear having an outer peripheral wall and a coaxial inner peripheral wall, the outer peripheral wall having gear teeth formed by forging. The gear structure also has an inside member having a circular outer peripheral wall fitted in and integrated with the annular gear such that the circular outer peripheral wall of the inside member engages the inner peripheral wall of the annular gear.
    Type: Application
    Filed: April 19, 2006
    Publication date: November 2, 2006
    Applicants: CREATECH CO., LTD., KANEMATSU CORPORATION
    Inventors: Hitoshi Ishida, Kotaro Atsumi
  • Publication number: 20060225480
    Abstract: A forging device includes a die having an axis extending generally vertically. A work is placed in the die along the axis. First and second punches extend coaxially with the die and can interpose the work therebetween. A pressurizing section pressurizes the first and second punches toward the work generally simultaneously.
    Type: Application
    Filed: April 11, 2006
    Publication date: October 12, 2006
    Applicant: CREATECH CO., LTD.
    Inventor: Hitoshi Ishida
  • Patent number: 7041265
    Abstract: Alkaline earth metal basic silicate particles having a silicate of an alkaline earth metal on the surfaces of the alkaline earth metal hydroxide particles, and having an SiO2/MO (M is an alkaline earth metal) molar ratio as a whole in a range of from 0.01 to 0.90. The particles are useful as a stabilizer for the chlorine-containing polymers.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: May 9, 2006
    Assignee: Mizusawa Industrial Chemicals
    Inventors: Hitoshi Ishida, Yoshinobu Komatsu, Hiroshi Enoki, Kazunori Sakao, Katsumi Higuchi, Kouji Inoue, Junichi Nakajima
  • Publication number: 20050242905
    Abstract: A filtering device is disclosed that can be made compact and has wide-band band-pass characteristics. The filtering device includes a first filtering unit that is composed of a distributed constant circuit and is capable of eliminating a first frequency component or a second frequency component wherein the second frequency being higher than the first frequency, and a second filtering unit that attenuates components of frequencies lower than the first frequency or components of frequencies higher than the second frequency.
    Type: Application
    Filed: April 15, 2005
    Publication date: November 3, 2005
    Applicants: FUJITSU COMPONENT LIMITED, THE CIRCLE FOR THE PROMOTION OF SCIENCE AND ENGINEERING
    Inventors: Hiroto Inoue, Shigemi Kurashima, Takuya Uchiyama, Masahiro Yanagi, Takashi Arita, Kiyomichi Araki, Hitoshi Ishida
  • Publication number: 20050170774
    Abstract: A relay station 200 constructs an infrastructure wireless network 200L. A printing device 100 requests new participation in the wireless network 200L. When preset conditions are satisfied, for example, when the user has pressed a push button 201 provided on the relay station 200, the relay station 200 establishes temporary wireless communication with the printing device 100 and changes an SSID of the printing device 100 to an SSID of the relay station 200. In this manner, this arrangement readily changes the configuration information of the printing device 100.
    Type: Application
    Filed: January 6, 2005
    Publication date: August 4, 2005
    Inventors: Susumu Shiohara, Hitoshi Ishida, Tatsuya Kiyono