Patents by Inventor Masaaki Tamura

Masaaki Tamura 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: 10509572
    Abstract: A storage device includes a non-volatile storage, and a controller configured to carry out, in parallel, operations in response to a plurality of commands received from a host and queued in a command queue. When the controller detects an error in a first operation that is being carried out in response to a first command while the controller is in parallel carrying out a second operation in response to a second command, the controller continues to carry out the second operation until a predetermined condition is met while carrying out the second operation and, at that time when the predetermined condition is met, transmits an error event notification to the host.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: December 17, 2019
    Assignee: Toshiba Memory Corporation
    Inventors: Yutaka Sugimori, Takamasa Hirata, Mitsuhiko Sugiyama, Masaaki Tamura
  • Publication number: 20190087125
    Abstract: A memory system includes a non-volatile memory device and a memory controller. The memory controller includes a first counting circuit configured to count a number of times reading is performed on a first unit of data, a second counting circuit configured to count a number of times reading is performed on a second unit of data, which has a size smaller than that of the first unit of data and is a part of the first unit of data, when the number of times reading has been performed on the first unit of data exceeds a first threshold value, and a cache control circuit configured to cache the second unit of data in response to a read request for the second unit of data, when the number of times reading has been performed on the second unit of data exceeds a second threshold value.
    Type: Application
    Filed: March 1, 2018
    Publication date: March 21, 2019
    Inventors: Mariko MATSUMOTO, Masaaki TAMURA, Takamasa HIRATA
  • Publication number: 20170262205
    Abstract: A storage device includes a non-volatile storage, and a controller configured to carry out, in parallel, operations in response to a plurality of commands received from a host and queued in a command queue. When the controller detects an error in a first operation that is being carried out in response to a first command while the controller is in parallel carrying out a second operation in response to a second command, the controller continues to carry out the second operation until a predetermined condition is met while carrying out the second operation and, at that time when the predetermined condition is met, transmits an error event notification to the host.
    Type: Application
    Filed: March 6, 2017
    Publication date: September 14, 2017
    Inventors: Yutaka SUGIMORI, Takamasa HIRATA, Mitsuhiko SUGIYAMA, Masaaki TAMURA
  • Publication number: 20170168725
    Abstract: A memory system includes a nonvolatile memory including first and second regions for storing firmware and a controller configured to access the nonvolatile memory based on a command from a host device. When the controller receives new firmware along with an update command and old firmware is stored in the first region, the controller stores the new firmware in the second region. When execution of firmware is triggered by an event specified by the update command after the new firmware has been stored, the controller executes the new firmware. When execution of firmware is triggered by an event that is not specified by the update command after the new firmware has been stored, the controller executes the old firmware.
    Type: Application
    Filed: April 26, 2016
    Publication date: June 15, 2017
    Inventors: Masaaki TAMURA, Masami AIHARA, Tetsuji HARADA
  • Publication number: 20130261240
    Abstract: Provided is a polyurethane resin powder composition for slush molding from which an outer skin for an instrument panel can be produced, the outer skin not interfering with deployment of an airbag. More specifically, provided is a polyurethane resin powder composition (D) for slush molding comprising perfectly spherical thermoplastic polyurethane resin particles (A) obtained by reacting a polyester diol component (J) and a diisocyanate component (F), a plasticizer (B), and a vinyl-type copolymer fine particles (C) having a crosslinked structure, wherein the polyester diol component (J) comprises a polyester diol (J1) comprising an aromatic dicarboxylic acid (E) and ethylene glycol as essential constituent units, a ratio of volume average particle sizes of (A) and (C), (A):(C), is 200:1 to 2000:1, and an extent of surface coverage of a surface of (A) with (C) {Equation (1)} is 20 to 80%.
    Type: Application
    Filed: March 11, 2013
    Publication date: October 3, 2013
    Applicants: CALSONIC KANSEI CORPORATION, SANYO CHEMICAL INDUSTRIES, LTD.
    Inventors: Shu Yasuhara, Yasuhiro Tsudo, Koichi Saito, Masaaki Namiki, Naohito Jinnai, Shigeji Ichikawa, Masaaki Tamura
  • Publication number: 20130252096
    Abstract: A nonaqueous electrolyte rechargeable battery includes a positive electrode, a negative electrode, and an electrolyte solution. The positive electrode includes a positive-electrode active material that occludes and discharges an alkali metal ion. The negative electrode includes a negative-electrode active material that occludes and discharges an alkali metal ion. At least one of the positive electrode and the negative electrode contains a conductive polymer. The conductive polymer has a fiber-form or a three-dimensional structure provided by the fiber-form as a base, the fiber-form having a fiber diameter of equal to or less than 100 nm and an aspect ratio of equal to or greater than 10.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 26, 2013
    Applicants: JAPAN CARLIT CO., LTD., DENSO CORPORATION
    Inventors: Ryuta Kobayakawa, Kyohei Usami, Shigeki Komine, Masaaki Tamura, Tomohiko Abe, Makoto Kodaira
  • Publication number: 20130252102
    Abstract: A nonaqueous electrolyte rechargeable battery includes a positive electrode, a negative electrode, and an electrolyte solution. The positive electrode includes a positive-electrode active material that occludes and discharges an alkali metal ion. The negative electrode includes a negative-electrode active material that occludes and discharges an alkali metal ion. At least one of the positive electrode and the negative electrode contains a conductive polymer that binds the active material and provides oxidation resistance.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 26, 2013
    Applicants: JAPAN CARLIT CO., LTD., DENSO CORPORATION
    Inventors: Ryuta Kobayakawa, Kyohei Usami, Shigeki Komine, Yuuki Tachibana, Masaaki Tamura, Tomohiko Abe, Makoto Kodaira
  • Patent number: 8300308
    Abstract: An eyepiece base unit and a microscope with which a phase contrast observation function can be easily added to the microscope. The eyepiece base unit is removably attached to a main unit of the microscope, and includes, in a state of being attached to the microscope, a pupil conjugate plane, which is a plane conjugate with an image side focal plane of an objective lens in an observation optical system of the microscope. By rotating a turret around a central axis, phase plates installed in the turret can be inserted into the pupil conjugate plane.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: October 30, 2012
    Assignee: Nikon Corporation
    Inventor: Masaaki Tamura
  • Publication number: 20120251831
    Abstract: An object of the present invention is to provide a near infrared absorbent dye capable of providing a near infrared shielding filter with excellent transparency as well as high heat resistance and hygrothermal resistance. The near infrared absorbent dye is characterized in that it is made of the amorphous form of diimmonium salt represented by formula (1).
    Type: Application
    Filed: December 16, 2010
    Publication date: October 4, 2012
    Applicant: JAPAN CARLIT CO., LTD
    Inventors: Akinori Okayasu, Masaaki Tamura
  • Publication number: 20120215969
    Abstract: According to one embodiment, a storage device includes: a backup unit configured to perform backup at the time of a power shutoff; a storage module configured to store information; a cache memory configured to perform caching of the storage module; and a controller configured to adjust a size of a cache to the cache memory according to exhaustion of the backup unit.
    Type: Application
    Filed: February 22, 2012
    Publication date: August 23, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masaaki Tamura, Masakazu Tsuruoka
  • Patent number: 8212141
    Abstract: There is provided a high-sensitivity organic semiconductor radiation/light sensor and a radiation/light detector which can detect rays in real time. In the high-sensitivity organic semiconductor radiation/light sensor, a signal amplification wire 2 is embedded in an organic semiconductor 1. Carriers created by passage of radiation or light are avalanche-amplified by a high electric field generated near the signal amplification wire 2 by means of applying a high voltage to the signal amplification wire 2, thus dramatically improving detection efficiency of rays. Hence, even rays exhibiting low energy loss capability can be detected in real time with high sensitivity.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: July 3, 2012
    Assignees: Niigata University, Japan Carlit Co., Ltd.
    Inventors: Hitoshi Miyata, Yoshimasa Fujigaki, Yoji Yamaguchi, Yoshinori Muto, Masaaki Tamura
  • Publication number: 20110315939
    Abstract: A near infrared absorbent dye is provided, having excellent heat resistance and excellent moisture resistance, as is a near infrared shielding filter using the dye. The near infrared absorbent dye contains an association form of a diimmonium salt compound represented by formula (1): wherein R1 to R8 are the same or different and each represents an organic group, and X? represents an anion.
    Type: Application
    Filed: February 18, 2010
    Publication date: December 29, 2011
    Applicant: Japan Carlit Co., Ltd.
    Inventors: Akinori Okayasu, Susumu Yamanobe, Masaaki Tamura, Yoji Yamaguchi
  • Patent number: 7818556
    Abstract: Firmware FW1 and FW2 is separately stored in a non-volatile memory, in which a boot code for start-up and a restoration code are stored, and a first magnetic disk. A copy of the firmware FW1 stored in the non-volatile memory is stored in the first magnetic disk, and a copy of the entire firmware FW1 and FW2 stored in the first disk medium is stored in the second magnetic disk. When an error occurs during firmware update, upon next power-on, whether the volatile memory, the first magnetic disk, and the second magnetic disk are normal or abnormal is determined, and valid firmware is read and allocated to the volatile memory so as to perform start-up by a start-up mode corresponding to the determination contents.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: October 19, 2010
    Assignee: Toshiba Storage Device Corporation
    Inventors: Hirotaka Iima, Hiroshi Tsurumi, Masataka Shitara, Katsushi Ohta, Masaaki Tamura, Yasuyuki Nagashima
  • Publication number: 20100195199
    Abstract: The present invention relates to an eyepiece base unit and a microscope with which a phase contrast observation function can be easily added to the microscope. The eyepiece base unit 12 is removably attached to a main unit of the microscope, and includes, in a state of being attached to the microscope, a pupil conjugate plane, which is a plane conjugate with an image side focal plane of an objective lens in an observation optical system of the microscope. By rotating a turret 32 around a central axis 67, phase plates 64a and 64c installed in the turret 32 can be inserted into the pupil conjugate plane. The present invention can be applied to a phase contrast microscope, for example.
    Type: Application
    Filed: April 15, 2010
    Publication date: August 5, 2010
    Inventor: Masaaki TAMURA
  • Publication number: 20100005257
    Abstract: A storage device includes a first storage unit that stores data read from a recording medium based on an instruction received from a processing device, and transmitting the data stored in the first storage unit to the processing device. The storage device also includes a second storage unit that stores the instruction received from the processing device; a counter that counts the number of pieces of data stored in the first storage unit; and a control unit that transmits the data stored in the first storage unit to the processing device based on a count value of the counter and, when the data read upon the instruction is stored in the first storage unit, writes identification information indicating that storing data has been completed in the second storage unit and, based on the identification information, transmits the data stored in the first storage unit to the processing device.
    Type: Application
    Filed: June 8, 2009
    Publication date: January 7, 2010
    Applicant: FUJITSU LIMITED
    Inventors: Masaaki Tamura, Gen Ohshima
  • Patent number: 7524619
    Abstract: A coloring matter absorbing a near-infrared ray which comprises a diimonium salt containing a sulfonimide as an anion moiety, represented by the general formula (1): wherein R may be the same or different and represents a moiety selected from the group consisting of an alkyl group, a halogenated alkyl group, a cyanoalkyl group, an aryl group, a hydroxyl group, a phenyl group, and a phenylalkylene group, and R1 and R2 may be the same or different and each represent a fluoroalkyl group, or together form a fluoroalkylene group. The coloring matter absorbing a near-infrared ray is excellent in the resistance to heat and moisture, and thus exhibits an ability of absorbing a near-infrared ray not lowering for a long period of time.
    Type: Grant
    Filed: November 18, 2003
    Date of Patent: April 28, 2009
    Assignee: Japan Carlit Co., Ltd.
    Inventors: Susumu Yamanobe, Masaaki Tamura, Yoji Yamaguchi, Hideo Yamamoto
  • Publication number: 20090050815
    Abstract: There is provided a high-sensitivity organic semiconductor radiation/light sensor and a radiation/light detector which can detect rays in real time. In the high-sensitivity organic semiconductor radiation/light sensor, a signal amplification wire 2 is embedded in an organic semiconductor 1. Carriers created by passage of radiation or light are avalanche-amplified by a high electric field generated near the signal amplification wire 2 by means of applying a high voltage to the signal amplification wire 2, thus dramatically improving detection efficiency of rays. Hence, even rays exhibiting low energy loss capability can be detected in real time with high sensitivity.
    Type: Application
    Filed: October 20, 2006
    Publication date: February 26, 2009
    Inventors: Hitoshi Miyata, Yoshimasa Fujigaki, Yoji Yamaguchi, Yoshinori Muto, Masaaki Tamura
  • Publication number: 20080156693
    Abstract: To provide a process of hydrocracking heavy oil capable of obtaining cracked light oil with higher yields and/or milder reaction conditions than the conventionally proposed hydrocracking process in a suspended bed method using an iron-based catalyst when hydrocracking heavy oil containing heavy metal components produced in a refining process of crude oil into lighter oil. There are provided (1) a process of hydrocracking heavy oil containing heavy metal components produced in a refining process of crude oil, comprising a vacuum distillation step to obtain the heavy oil as distillation residue by vacuum distillation; and a reaction step to hydrocrack the heavy oil in the presence of an iron-based catalyst in a suspended bed reactor, wherein the distillation is conducted at 350° C. or less in the vacuum distillation step, (2) in the preceding process, reaction conditions in the reaction step are a reaction pressure of 60-160 kg/cm2; a reaction temperature of 430-455° C.; and a reaction time of 30-180 minutes.
    Type: Application
    Filed: December 26, 2007
    Publication date: July 3, 2008
    Applicants: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd.), Petroleo Brasileiro S.A. -Petrobras
    Inventors: Toshiaki OKUI, Masaaki Tamura, Kazuyuki Eikawa, Wladmir Ferraz de Souza
  • Publication number: 20080052506
    Abstract: Firmware FW1 and FW2 is separately stored in a non-volatile memory, in which a boot code for start-up and a restoration code are stored, and a first magnetic disk. A copy of the firmware FW1 stored in the non-volatile memory is stored in the first magnetic disk, and a copy of the entire firmware FW1 and FW2 stored in the first disk medium is stored in the second magnetic disk. When an error occurs during firmware update, upon next power-on, whether the volatile memory, the first magnetic disk, and the second magnetic disk are normal or abnormal is determined, and valid firmware is read and allocated to the volatile memory so as to perform start-up by a start-up mode corresponding to the determination contents.
    Type: Application
    Filed: July 25, 2007
    Publication date: February 28, 2008
    Inventors: Hirotaka Iima, Hiroshi Tsurumi, Masataka Shitara, Katsushi Ohta, Masaaki Tamura, Yasuyuki Nagashima
  • Publication number: 20080040818
    Abstract: A storage apparatus divides and stores firmware which is drive control software to record and reproduce data in a disk medium into a non-volatile memory and a disk medium, and at the time of activating the apparatus, stores and executes firmware read from the non-volatile memory and the disk medium into a volatile memory. A renewal request processing unit, when received a renewal request of the firmware from a host, advises the host of the renewal completion at a point of time when new firmware transferred from the host is received and stored in the buffer memory. The background renewal unit, after the advice of the renewal completion, writes and renews the new firmware into the non-volatile memory and the disk medium as a background processing using the processing idle time of a command issued by the host.
    Type: Application
    Filed: December 8, 2006
    Publication date: February 14, 2008
    Inventors: Hirotaka Iima, Hiroshi Tsurumi, Masaaki Tamura, Masataka Shitara