Patents by Inventor Hiroaki Murakami

Hiroaki Murakami 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: 20190221392
    Abstract: A stationary core is in an exciting coil. A yoke covers an outer periphery and an axial end of the exciting coil to form a magnetic circuit and has an opening portion. The movable core faces the stationary core through the opening portion and is attracted toward the stationary core on energization of the exciting coil. A return spring urges the movable core against the attraction direction. A first gap is formed between the stationary core and the movable core on deenergization of the exciting coil. A second gap is formed between the yoke and the movable core on deenergization of the exciting coil. The second gap allows the yoke and the movable core to generate an attractive force therebetween on energization of the exciting coil. The return spring is made of a magnetic material to magnetically bridge the first gap or the second gap.
    Type: Application
    Filed: March 20, 2019
    Publication date: July 18, 2019
    Applicants: DENSO CORPORATION, SOKEN, INC., ANDEN CO., LTD.
    Inventors: Yoshitaka NISHIGUCHI, Shota IGUCHI, Takahiro SOKI, Hiroaki MURAKAMI, Masanao SUGISAWA
  • Patent number: 10274454
    Abstract: To measure target component concentration in a liquid with higher accuracy without any dedicated apparatus or skill, a method is adapted to include: receiving a successive measurement value obtained by performing successive measurement of the target component concentration with use of a first measurement device immersed in the liquid; receiving a batch measurement value obtained by, with use of a second measurement device, performing batch measurement of the target component concentration in a part sampled from the liquid; and, when the batch measurement value is received, successively calculating a correlation value indicating the correlation between multiple successive measurement values and multiple batch measurement values respectively obtained in mutually corresponding multiple times of successive measurement and multiple times of batch measurement.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: April 30, 2019
    Assignees: HORIBA, LTD., HORIBA ADVANCED TECHNO, CO., LTD.
    Inventors: Akio Nakayama, Rumiko Furuya, Yuichi Ito, Akio Ishii, Yuji Gyoten, Yoshitake Ando, Hiroaki Murakami
  • Publication number: 20190077022
    Abstract: A preparation assisting system includes a robot and a processor. The robot is configured to prepare a medical/chemical solution using at least one medical/chemical agent contained in at least one agent container. The processor is configured to output a specific operation command depending on the at least one agent container to control the robot to prepare the medical/chemical solution.
    Type: Application
    Filed: September 10, 2018
    Publication date: March 14, 2019
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Hiroaki MURAKAMI, Shigeji TASAKA, Masayuki NOMURA, Teruhiro KURIHARA, Takashi SUYAMA, Oki SHIBAHARA
  • Publication number: 20190016372
    Abstract: A steering device includes: a rack shaft; a rack housing housing the rack shaft; a motor unit having a motor case of which one end is coupled to the rack housing; a moving force application mechanism that moves the rack shaft by an output of the motor unit; and a support member that is fixed to the rack housing and supports the motor case. The rack housing has a fixing projection in which a bolt hole extending in a height direction is formed. The support member has an arc-shaped support part that extends along an outer circumferential surface of the motor case, and a pair of fixing pieces that protrudes from the support part toward a rack shaft housing section. Ends of the pair of fixing pieces are fastened with a bolt to the fixing projection of the rack housing.
    Type: Application
    Filed: July 5, 2018
    Publication date: January 17, 2019
    Applicant: JTEKT CORPORATION
    Inventors: Yuta KIMURA, Hiroaki MURAKAMI
  • Patent number: 10170227
    Abstract: In a main magnetic circuit, first pulling force generated based on a first component of the magnetic flux flowing through the main magnetic path pulls a movable core in a reciprocation direction of the movable core. The first pulling force increases with a reduction of a dimension of the gap. In an auxiliary magnetic circuit, second pulling force generated based on the second component of the magnetic flux flowing through the auxiliary magnetic path pulls the movable core in the reciprocation direction of the movable core. In the auxiliary magnetic circuit, the second pulling force with the dimension of the gap being within a first range is changed to be higher than the second pulling force with the dimension of the gap being within a second range, the second range being smaller than the first range.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: January 1, 2019
    Assignees: DENSO CORPORATION, ANDEN CO., LTD.
    Inventors: Ken Tanaka, Shota Iguchi, Hiroaki Murakami
  • Patent number: 10078301
    Abstract: An image forming apparatus includes an apparatus body accommodating an image forming device, a foreign object detector that detects a foreign object beside the apparatus body, and a detector holding unit that holds the foreign object detector. The foreign object detector and the detector holding unit are movable together into the apparatus body.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: September 18, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Ruki Midorikawa, Shogo Terakawa, Tetsuji Nishikawa, Hiroshi Ishii, Kohta Takenaka, Hiroaki Murakami, Hidehiko Maeda, Gaku Hosono
  • Publication number: 20180247781
    Abstract: In an electromagnetic relay device, a stationary core is coaxially arranged in an exciting coil, and constitutes a magnetic circuit. A yoke is arranged to surround an outer periphery of the exciting coil and the second end of the exciting coil to constitute the magnetic circuit. The yoke has an opening that is located to be closer to the first end of the exciting coil than to the second end of the exciting coil, and that faces the stationary core. A movable core is located to face the stationary core via the opening. The movable core is pulled to the stationary core upon the exciting coil being energized. A return spring is made of a magnetic member that is volutely wound in an axial direction of the stationary core. The return spring urges the movable core to be separated from the stationary core.
    Type: Application
    Filed: February 26, 2018
    Publication date: August 30, 2018
    Applicants: SOKEN, INC., DENSO CORPORATION, ANDEN CO., LTD.
    Inventors: Yoshitaka NISHIGUCHI, Takahiro SOKI, Hiroaki MURAKAMI, Masanao SUGISAWA
  • Patent number: 10048628
    Abstract: An image forming apparatus includes an apparatus body accommodating an image forming device, a foreign object detector that detects a foreign object beside the apparatus body, and a detector holding unit that holds the foreign object detector. The foreign object detector and the detector holding unit are movable together into the apparatus body.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: August 14, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Ruki Midorikawa, Shogo Terakawa, Tetsuji Nishikawa, Hiroshi Ishii, Kohta Takenaka, Hiroaki Murakami, Hidehiko Maeda, Gaku Hosono
  • Patent number: 10038800
    Abstract: An image forming apparatus includes an outer cover, an interior device spaced apart from the outer cover, and an accommodating recess interposed between the outer cover and the interior device. The accommodating recess accommodates an arbitrary part of the image forming apparatus.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: July 31, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Hiroaki Murakami, Nobuhiro Shima, Yoshihide Ohta, Hiroki Ishimitsu, Kazuyuki Ito, Katsuhiro Hoshi, Takayuki Nishi
  • Publication number: 20180183368
    Abstract: A motor driving control device comprises: an induced voltage detecting unit configured to detect an induced voltage of a motor; a controller for generating a PWM signal corresponding to an energization timing of the motor; and an inverter circuit for outputting a driving signal for driving the motor to the motor based on the PWM signal generated by the controller, wherein the controller comprises: a position detecting unit configured to detect a position detection signal containing a rising or falling edge representing a timing at which a position of a rotor is a predetermined position; measuring unit configured to measure a zero-cross point of the induced voltage of the motor based on a detected timing of the edge of the position detection signal, and stopping output of the driving signal only for a predetermined period containing the zero-cross point of the induced voltage of the motor to measure a pulse width of a regenerated voltage of the motor in the period; a calculating unit configured to calculate a
    Type: Application
    Filed: December 14, 2017
    Publication date: June 28, 2018
    Inventor: Hiroaki MURAKAMI
  • Publication number: 20180136272
    Abstract: A fault detection apparatus is provided, including a measurement unit that measures a first time period taken until a reflection signal reflected on a fault of a test apparatus is received after a first signal is transmitted to the test apparatus; a memory unit that includes a CAD data unit having CAD data of the test apparatus and a model data unit to store model data indicating a relation between the first time period and a predicted conduction distance of the first signal; a control unit that calculates a range of a test object selected in the test apparatus, calculates the predicted conduction distance from the first time period based on the model data, and specifies a position of the fault which is separated by the predicted conduction distance from the measurement unit in said range; and a display unit that displays the position of the fault.
    Type: Application
    Filed: December 21, 2017
    Publication date: May 17, 2018
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Motoshi Seto, Hiroaki Murakami
  • Publication number: 20180061544
    Abstract: In a main magnetic circuit, first pulling force generated based on a first component of the magnetic flux flowing through the main magnetic path pulls a movable core in a reciprocation direction of the movable core. The first pulling force increases with a reduction of a dimension of the gap. In an auxiliary magnetic circuit, second pulling force generated based on the second component of the magnetic flux flowing through the auxiliary magnetic path pulls the movable core in the reciprocation direction of the movable core. In the auxiliary magnetic circuit, the second pulling force with the dimension of the gap being within a first range is changed to be higher than the second pulling force with the dimension of the gap being within a second range, the second range being smaller than the first range.
    Type: Application
    Filed: August 25, 2017
    Publication date: March 1, 2018
    Applicants: DENSO CORPORATION, ANDEN CO., LTD.
    Inventors: Ken TANAKA, Shota IGUCHI, Hiroaki MURAKAMI
  • Publication number: 20170322178
    Abstract: A liquid analyzer is one that performs analysis in a state of being immersed in a flowing analysis target liquid, and in order to simply make a good/bad determination and increase reliability, includes: a sensor adapted to, in a state where a responsive membrane is immersed in the flowing analysis target liquid, sense a predetermined component contained in the analysis target liquid; an analysis mechanism adapted to analyze the analysis target liquid with use of voltage generated in the sensor; and a resistance measurement mechanism adapted to, in the state where the responsive membrane is immersed in the flowing analysis target liquid, apply DC voltage to the responsive membrane to measure the resistance of the responsive membrane.
    Type: Application
    Filed: November 26, 2015
    Publication date: November 9, 2017
    Inventors: Akio Nakayama, Rumiko Furuya, Akio Ishii, Yasuto Kaba, Yuichi Ito, Susumu Yamauchi, Hiroaki Murakami, Atsushi Senda
  • Patent number: 9808402
    Abstract: A liquid medicine preparation system that prepares a liquid medicine includes: a preparing zone in which preparation work of the liquid medicine is performed by a robot; and a storing zone which has a plurality of first spaces each of which is capable of storing a container housing the liquid medicine prepared.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: November 7, 2017
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Hiroaki Murakami, Makoto Umeno, Shigeji Tasaka
  • Publication number: 20170234826
    Abstract: To measure target component concentration in a liquid with higher accuracy without any dedicated apparatus or skill, a method is adapted to include: receiving a successive measurement value obtained by performing successive measurement of the target component concentration with use of a first measurement device immersed in the liquid; receiving a batch measurement value obtained by, with use of a second measurement device, performing batch measurement of the target component concentration in a part sampled from the liquid; and, when the batch measurement value is received, successively calculating a correlation value indicating the correlation between multiple successive measurement values and multiple batch measurement values respectively obtained in mutually corresponding multiple times of successive measurement and multiple times of batch measurement.
    Type: Application
    Filed: February 14, 2017
    Publication date: August 17, 2017
    Inventors: Akio Nakayama, Rumiko Furuya, Yuichi Ito, Akio Ishii, Yuji Gyoten, Yoshitake Ando, Hiroaki Murakami
  • Publication number: 20170235264
    Abstract: An image forming apparatus includes an apparatus body accommodating an image forming device, a foreign object detector that detects a foreign object beside the apparatus body, and a detector holding unit that holds the foreign object detector. The foreign object detector and the detector holding unit are movable together into the apparatus body.
    Type: Application
    Filed: January 17, 2017
    Publication date: August 17, 2017
    Applicant: Ricoh Company, Ltd.
    Inventors: Ruki Midorikawa, Shogo Terakawa, Tetsuji Nishikawa, Hiroshi Ishii, Kohta Takenaka, Hiroaki Murakami, Hidehiko Maeda, Gaku Hosono
  • Publication number: 20170064106
    Abstract: An image forming apparatus includes an outer cover, an interior device spaced apart from the outer cover, and an accommodating recess interposed between the outer cover and the interior device. The accommodating recess accommodates an arbitrary part of the image forming apparatus.
    Type: Application
    Filed: August 3, 2016
    Publication date: March 2, 2017
    Applicant: Ricoh Company, Ltd.
    Inventors: Hiroaki MURAKAMI, Nobuhiro SHIMA, Yoshihide OHTA, Hiroki ISHIMITSU, Kazuyuki ITO, Katsuhiro HOSHI, Takayuki NISHI
  • Patent number: 9471021
    Abstract: An image forming apparatus includes a multi-color misalignment calculator that calculates an amount of multi-color misalignment of multiple color misalignment detection test pattern images based on position readings outputted by multiple test pattern image detectors, an image formation condition adjusting unit that adjusts an image formation condition of the image forming apparatus in accordance with the amount of multi-color misalignment of the multiple color misalignment detection test pattern images calculated by the multi-color misalignment calculator, and a process control unit that initiates a first multi-color misalignment correction control mode including a skew misalignment correction process and a second multi-color misalignment correction control mode excluding the skew misalignment correction process to correct multi-color misalignment of the multiple color misalignment detection test pattern images.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: October 18, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Akihiko Tosaka, Toshiyuki Uchida, Kazuhiro Kobayashi, Hiroaki Murakami
  • Publication number: 20160228329
    Abstract: A liquid medicine preparation system that prepares a liquid medicine includes: a preparing zone in which preparation work of the liquid medicine is performed by a robot; and a storing zone which has a plurality of first spaces each of which is capable of storing a container housing the liquid medicine prepared.
    Type: Application
    Filed: December 14, 2015
    Publication date: August 11, 2016
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Hiroaki MURAKAMI, Makoto UMENO, Shigeji TASAKA
  • Publication number: 20160185676
    Abstract: The present application provides: a microbial material for agricultural use characterized by containing, as an active ingredient, Bacillus subtilis C-3102 strain (FERM BP-1096) that is capable of promoting the growth of crops and/or increasing the yield of crops, or a variant thereof that has an ability equivalent thereto; and a method for cultivating crops characterized by comprising cultivating the crops using a soil or medium that contains the microbial material.
    Type: Application
    Filed: August 6, 2014
    Publication date: June 30, 2016
    Applicant: ASAHI CALPIS WELLNESS CO., LTD.
    Inventors: Toki Nishiyama, Taisuke UESUGI, Gentaro YASUDA, Hiroaki MURAKAMI, Yoshiaki YAMAMOTO