Patents by Inventor Hikaru Nakamura

Hikaru Nakamura 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: 11965817
    Abstract: Disclosed is a cell classification method, to be executed by an analyzer, for classifying cells contained in a specimen, including: preparing a first measurement sample by treating a specimen under a first preparation condition; obtaining a first signal from the prepared first measurement sample; classifying, by using the first signal, cells contained in the first measurement sample; preparing a second measurement sample by treating the specimen under a second preparation condition different from the first preparation condition; obtaining a second signal from the prepared second measurement sample; classifying, by using the second signal, cells contained in the second measurement sample; and comparing a result of the cell classification performed by using the first signal and a result of the cell classification performed by using the second signal, with each other, and outputting an analysis result including a number of cells on the basis of a result of the comparison.
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: April 23, 2024
    Assignee: SYSMEX CORPORATION
    Inventors: Yuki Shida, Yukiko Nakamura, Ken Nishikawa, Kota Misawa, Hikaru Onoue, Takaaki Nagai, Masaki Abe, Takahito Mihara, Masaharu Shibata, Konobu Kimura
  • Publication number: 20210071405
    Abstract: Provided is a blower installed at a manhole opening, with which it is possible to facilitate an entry or an exit of a worker or an import or an export of an article. The present invention provides a ventilation system comprising a frame and a single or a plurality of airflow generation means arranged at the frame, a direction of an airflow is adjusted so that the airflow generated from the airflow generation means flows along with a virtual axis penetrating a virtual surface which the frame is regarded as to periphery, and the airflow flows while swallowing up the surrounding air of the virtual axis, and an air volume more than two times of total fluid volume of the airflow is generated.
    Type: Application
    Filed: November 20, 2020
    Publication date: March 11, 2021
    Applicants: TOKYO METROPOLITAN SEWERAGE SERVICE CORPORATION, EBISMARINE CORPORATION, EBISTRADE, INC.
    Inventors: Yukitoshi IWASA, Hiroshi OGIWARA, Takaaki ODATE, Hikaru NAKAMURA, Ryoji TERAI
  • Publication number: 20180087261
    Abstract: Provided is a blower installed at a manhole opening, with which it is possible to facilitate an entry or an exit of a worker or an import or an export of an article. The present invention provides a ventilation system comprising a frame and a single or a plurality of airflow generation means arranged at the frame, a direction of an airflow is adjusted so that the airflow generated from the airflow generation means flows along with a virtual axis penetrating a virtual surface which the frame is regarded as to periphery, and the airflow flows while swallowing up the surrounding air of the virtual axis, and an air volume more than two times of total fluid volume of the airflow is generated.
    Type: Application
    Filed: December 8, 2015
    Publication date: March 29, 2018
    Applicants: TOKYO METROPOLITAN SEWERAGE SERVICE CORPORATION, EBISMARINE CORPORATION, EBISTRADE, INC.
    Inventors: Yukitoshi IWASA, Hiroshi OGIWARA, Takaaki ODATE, Hikaru NAKAMURA, Ryoji TERAI
  • Patent number: 7502685
    Abstract: A vehicle navigation apparatus is provided which can reliably guide a vehicle along a guidance route when the vehicle approaches an intersection of interest at which it is to make a turn even if another intersection exists between a vehicle position and the intersection of interest. A controller determines whether or not another intersection exists between the vehicle position and the next guidance intersection (an intersection at which the vehicle is to make a turn) when the vehicle reaches a predetermined distance from the guidance intersection. If another intersection is determined to exist, an intersection guidance map with an arrow indicative of the guidance route colored in a predetermined color is displayed on a display device. In one embodiment, if another intersection does not exist between the vehicle and the guidance intersection, the color of the arrow displayed is changed to a different color.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: March 10, 2009
    Assignee: Alpine Electronics, Inc.
    Inventor: Hikaru Nakamura
  • Publication number: 20070110410
    Abstract: A stationary position detection circuit and a motor drive circuit capable of more properly detecting the rotor position are disclosed. The stationary position detection circuit supplies an alternating current to each phase load of the motor. The time during which the current flows in a first direction and the time during which the current flows in a second direction opposite to the first direction are converted into electrical signals and amplified. In accordance with the value of the electrical signals, the position of the motor rotor in stationary mode is determined. The use of the alternating current, unlike the kickback voltage, makes it possible to improve the detection accuracy by amplifying the electrical signals with an increased number of alternations. An increased number of alternations can amplify the electrical signals without increasing the value of the alternating current, and therefore, unlike in the case of the kickback voltage, the alternating current of a large value is not required.
    Type: Application
    Filed: January 5, 2007
    Publication date: May 17, 2007
    Inventors: Satoshi Narumi, Masaharu Hoashi, Toshiya Suzuki, Daisuke Suetsugu, Hikaru Nakamura
  • Patent number: 7176677
    Abstract: A stationary position detection circuit and a motor drive circuit capable of more properly detecting the rotor position are disclosed. The stationary position detection circuit supplies an alternating current to each phase load of the motor. The time during which the current flows in a first direction and the time during which the current flows in a second direction opposite to the first direction are converted into electrical signals and amplified. In accordance with the value of the electrical signals, the position of the motor rotor in stationary mode is determined. The use of the alternating current, unlike the kickback voltage, makes it possible to improve the detection accuracy by amplifying the electrical signals with an increased number of alternations. An increased number of alternations can amplify the electrical signals without increasing the value of the alternating current, and therefore, unlike in the case of the kickback voltage, the alternating current of a large value is not required.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: February 13, 2007
    Assignee: Renesas Technology Corp.
    Inventors: Satoshi Narumi, Masaharu Hoashi, Toshiya Suzuki, Daisuke Suetsugu, Hikaru Nakamura
  • Publication number: 20070001669
    Abstract: A stationary position detection circuit and a motor drive circuit capable of more properly detecting the rotor position are disclosed. The stationary position detection circuit supplies an alternating current to each phase load of the motor. The time during which the current flows in a first direction and the time during which the current flows in a second direction opposite to the first direction are converted into electrical signals and amplified. In accordance with the value of the electrical signals, the position of the motor rotor in stationary mode is determined. The use of the alternating current, unlike the kickback voltage, makes it possible to improve the detection accuracy by amplifying the electrical signals with an increased number of alternations. An increased number of alternations can amplify the electrical signals without increasing the value of the alternating current, and therefore, unlike in the case of the kickback voltage, the alternating current of a large value is not required.
    Type: Application
    Filed: June 28, 2006
    Publication date: January 4, 2007
    Applicant: Renesas Technology Corp.
    Inventors: Satoshi Narumi, Masaharu Hoashi, Toshiya Suzuki, Daisuke Suetsugu, Hikaru Nakamura
  • Publication number: 20060195257
    Abstract: A vehicle navigation apparatus is provided which can reliably guide a vehicle along a guidance route when the vehicle approaches an intersection of interest at which it is to make a turn even if another intersection exists between a vehicle position and the intersection of interest. A controller determines whether or not another intersection exists between the vehicle position and the next guidance intersection (an intersection at which the vehicle is to make a turn) when the vehicle reaches a predetermined distance from the guidance intersection. If another intersection is determined to exist, an intersection guidance map with an arrow indicative of the guidance route colored in a predetermined color is displayed on a display device. In one embodiment, if another intersection does not exist between the vehicle and the guidance intersection, the color of the arrow displayed is changed to a different color.
    Type: Application
    Filed: August 12, 2005
    Publication date: August 31, 2006
    Inventor: Hikaru Nakamura
  • Patent number: 6445999
    Abstract: In displaying map information, a map drawing unit generates map drawing data with an equal scale factor and a coordinate conversion unit does not execute coordinate conversion to an area a including the screen center and the lower area thereof, and writes in a VRAM the map drawing data that maintains the scale factor as it is. Further, the coordinate conversion unit writes in the VRAM map drawing data reduced with a specific reduction scale factor only in the horizontal direction as to each of the areas on the left and right of the area a; map drawing data reduced with a specific reduction scale factor only in the vertical direction as to the area directly above the area a; and map drawing data reduced with specific reduction scale factors both in the horizontal and vertical directions as to each of the areas located obliquely left above and obliquely right above the area a.
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: September 3, 2002
    Assignee: Alpine Electronics, Inc.
    Inventor: Hikaru Nakamura
  • Publication number: 20020049532
    Abstract: In displaying map information, a map drawing unit generates map drawing data with an equal scale factor and a coordinate conversion unit does not execute coordinate conversion to an area a including the screen center and the lower area thereof, and writes in a VRAM the map drawing data that maintains the scale factor as it is. Further, the coordinate conversion unit writes in the VRAM map drawing data reduced with a specific reduction scale factor only in the horizontal direction as to each of the areas on the left and right of the area a; map drawing data reduced with a specific reduction scale factor only in the vertical direction as to the area directly above the area a; and map drawing data reduced with specific reduction scale factors both in the horizontal and vertical directions as to each of the areas located obliquely left above and obliquely right above the area a.
    Type: Application
    Filed: September 19, 2001
    Publication date: April 25, 2002
    Inventor: Hikaru Nakamura