Patents by Inventor Kazuhiko Yasuda

Kazuhiko Yasuda 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: 20200057703
    Abstract: Provided is an information processing device which is capable of suppressing a deterioration in accuracy of detecting an anomaly and accuracy of analyzing the anomaly, while suppressing an increase in an amount of data to be stored. The information processing system includes anomaly detection unit that collects event data indicating a predetermined event detected in a process of a device to be monitored, determines whether a predetermined index value related to the event exceeds a preset first threshold, and instructs enhanced monitoring of the device to be monitored and the process related to the event when the index value exceeds the first threshold, and collection instruction unit that determines an additional event being an event to be additionally monitored when the enhanced monitoring is instructed, and instructs the device to be monitored, which is subjected to the enhanced monitoring, to monitor the determined additional event.
    Type: Application
    Filed: February 19, 2018
    Publication date: February 20, 2020
    Applicant: NEC CORPORATION
    Inventors: Shuichi KARINO, Kazuhiko ISOYAMA, Yuji KOBAYYASHI, Yoshiaki SAKAE, Hiroki TAGATO, Masato YASUDA
  • Patent number: 10527322
    Abstract: Provided is a air conditioner including high-and-low-pressure gas pipe expansion valves each of which is provided to a corresponding one of the cooling-heating switching units and adjusts feeding of high-temperature and high-pressure gas refrigerant to the corresponding indoor unit; and a refrigeration cycle controller which adjusts a valve opening degree of the high-and-low-pressure gas pipe expansion valve of the cooling-heating switching unit connected to one of the indoor units which is not in heating operation, in accordance with a determination result on excess or deficiency of refrigerant in a refrigeration cycle.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: January 7, 2020
    Assignee: Hitachi-Johnson Controls Air Conditioning, Inc.
    Inventors: Koji Naito, Kazumoto Urata, Kazuhiko Tani, Masayoshi Murofushi, Gen Yasuda
  • Publication number: 20190308182
    Abstract: An organometallic complex catalyst is disclosed for use in a cross-coupling reaction. In formula (1), M is the coordination center and represents a metal atom such as Pd or an ion thereof. R1, R2, and R3 may be the same or different and are a substituent such as a hydrogen atom. R4, R5, R6, and R7 may be the same or different and are a substituent such as a hydrogen atom. X represents a halogen atom. R8 represents a substituent that has a ? bond and 3-20 carbon atoms. With regard to the electron-donating properties of R1-R7 with respect to the coordination center M of the ligand containing R1-R7 that is indicated in formula (2), R1-R7 are arranged in combination such that the TEP value obtained from infrared spectroscopy shifts toward the high frequency side compared to the TEP value of the ligand of formula (2-1).
    Type: Application
    Filed: December 6, 2017
    Publication date: October 10, 2019
    Applicants: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, N.E. CHEMCAT CORPORATION
    Inventors: Junchul Choi, Norihisa Fukaya, Shunya Onozawa, Kazuhiko Sato, Hiroyuki Yasuda, Tomoteru Mizusaki, Yukio Takagi
  • Publication number: 20020050669
    Abstract: The present invention provides a production process of a hexagonal honeycomb structure having low deformation of hexagonal cells. This process comprises an extrusion step for obtaining moldings (7) in which partitions (71) are provided in the form of a hexagonal matrix by extrusion molding of a mixed raw material using a horizontal extruder having an extrusion die provided with slits in the form of a hexagonal matrix and in which the direction of extruding is substantially the horizontal direction, a drying step for drying moldings (7), and a baking step for baking moldings (7). The extrusion step is performed such that c axis (700) parallel to two parallel sides (702) and (705) of the six sides (701) through (706) of each hexagon formed by partitions (71) of extruded moldings (7) is substantially vertical relative to the horizontal plane.
    Type: Application
    Filed: September 5, 2001
    Publication date: May 2, 2002
    Inventors: Takasi Obata, Yosiyasu Andou, Kazuhiko Yasuda
  • Patent number: 6309590
    Abstract: The present invention provides a production process of a hexagonal honeycomb structure having low deformation of hexagonal cells. This process comprises an extrusion step for obtaining moldings (7) in which partitions (71) are provided in the form of a hexagonal matrix by extrusion molding of a mixed raw material using a horizontal extruder having an extrusion die provided with slits in the form of a hexagonal matrix and in which the direction of extruding is substantially the horizontal direction, a drying step for drying moldings (7), and a baking step for baking moldings (7). The extrusion step is performed such that c axis (700) parallel to two parallel sides (702) and (705) of the six sides (701) through (706) of each hexagon formed by partitions (71) of extruded moldings (7) is substantially vertical relative to the horizontal plane.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: October 30, 2001
    Assignee: Denso Corporation
    Inventors: Takasi Obata, Yosiyasu Andou, Kazuhiko Yasuda
  • Patent number: 5126895
    Abstract: A transducer position control system capable of shockproofing a hard disk data storage apparatus. Included is an off-track detector circuit relying on servo bursts prerecorded on the disk for detecting if the transducer is positioned within predetermined limits on any desired one of the concentric data tracks on the disk. If not, the off-track detector circuit signals a write circuit to inhibit writing. A programmed microcomputer may be employed to retry the writing of the same data on the disk sector where the transducer has gone off the track.
    Type: Grant
    Filed: May 10, 1990
    Date of Patent: June 30, 1992
    Assignee: TEAC Corporation
    Inventors: Kazuhiko Yasuda, Sumio Wada, Akira Shinohara
  • Patent number: 5079654
    Abstract: A disklike record medium such as a magnetic data storage disk, and a closed-loop servo control system for positioning a transducer such as a magnetic read/write head on any of a multiplicity of concentric tracks on the record medium. The tracks on the record medium are divided into a plurality of groups, and each track of each group has a different code character prerecorded thereon as in the form of discretely magnetized regions. All the groups of tracks have the same set of code characters assigned thereto for the simplicity of the code characters. Read by the transducer, the code characters enable the control system to individually identify all the tracks of all the groups. In response to an externally supplied track command indicative of a destination track on which the transducer is to be positioned, and to internally supplied track code data, the control system causes translation of the transducer from a departure track to the destination track during track seek operations.
    Type: Grant
    Filed: May 30, 1989
    Date of Patent: January 7, 1992
    Assignee: Teac Corporation
    Inventors: Hisatoshi Uno, Akira Takeda, Sumio Wada, Kazuhiko Yasuda
  • Patent number: 4875116
    Abstract: In a data storage and retrieval system employing a magnetic disk as the storage medium, a monophase encoder is coupled, typically, to an electric seek motor for optoelectronically producing an output representative of the position of a data transducer with respect to a multiplicity of concentric data tracks on the disk. Electrically connected to the monophase encoder is a triple detector circuit for deriving from the encoder output a transducer position signal representative of the transducer position on the disk, an actual transducer speed signal representative of the transducer speed relative to the disk, and a track boundary signal representative of boundaries between the data tracks on the disk.
    Type: Grant
    Filed: February 9, 1988
    Date of Patent: October 17, 1989
    Assignee: Teac Corporation
    Inventors: Kazuhiko Yasuda, Sumio Wada
  • Patent number: 4696439
    Abstract: A digital tape cassette apparatus having a speed sensing roller in frictional contact with the magnetic tape within a cassette housing at a point intermediate the magnetic head and that one of the cassette hubs operating as the takeup hub during forward tape transportation. Utilizing a tape speed signal generated by a speed sensor driven by the speed sensing roller, a closed loop servomechanism controls a pair of drive motors coupled directly to the respective cassette hubs to afford constant tape speed. The servomechanism is associated with a tape tension control circuit whereby a supply side one of the drive motors during tape travel in either direction is energized to an extent increasing with the increase in the diameter of the tape reel on the takeup side hub, thereby affording constant tape tension.
    Type: Grant
    Filed: April 11, 1986
    Date of Patent: September 29, 1987
    Assignee: Teac Corporation
    Inventors: Motoyuki Sukigara, Kazuhiko Yasuda