Patents by Inventor Toru Nakao

Toru Nakao 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: 20240096351
    Abstract: A plurality of gap patterns are formed on a front surface of a substrate along a direction corresponding to a width direction of a magnetic tape. The first straight line region has a steeper inclined angle with respect to the first imaginary straight line than the second straight line region. Positions of both ends of the first straight line region and positions of both ends of the second straight line region are aligned in a direction corresponding to a width direction of a magnetic tape. Positions of the plurality of gap patterns are aligned in a longitudinal direction of the magnetic tape. A pulse signal is supplied to each of the plurality of gap patterns with a delay of a predetermined time from one side to the other side in a direction in which the plurality of gap patterns are arranged.
    Type: Application
    Filed: November 28, 2023
    Publication date: March 21, 2024
    Inventors: Toru NAKAO, Tetsuya KANEKO, Yoichi AKANO
  • Patent number: 11908498
    Abstract: A first straight line region and a second straight line region of the straight line region pair are inclined in opposite directions with respect to a first imaginary straight line. The first straight line region has a steeper inclined angle with respect to the first imaginary straight line than the second straight line region. Positions of both ends of the first straight line region and positions of both ends of the second straight line region are aligned in a direction corresponding to a width direction of a magnetic tape. A plurality of gap patterns deviate from each other by a predetermined interval in a direction corresponding to a longitudinal direction of the magnetic tape, between the gap patterns adjacent to each other along the direction corresponding to the width direction of the magnetic tape. A substrate is inclined with respect to the first imaginary straight line.
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: February 20, 2024
    Assignee: FUJIFILM CORPORATION
    Inventors: Toru Nakao, Tetsuya Kaneko, Yoichi Akano
  • Patent number: 11900976
    Abstract: A processing device stores a result of reading a reference servo pattern by a servo reading element from a magnetic tape in which the reference servo pattern is recorded, in the storage medium as an ideal waveform signal indicating an ideal waveform, acquires a servo band signal which is a result of reading a servo pattern recorded in a servo band of the magnetic tape by the servo reading element, and detects a servo pattern signal which is a result of reading the servo pattern by the servo reading element by comparing the ideal waveform signal stored in the storage medium with the servo band signal. The magnetic tape has a data band. The reference servo pattern is recorded in the data band.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: February 13, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Yoichi Akano, Toru Nakao, Tetsuya Kaneko
  • Patent number: 11900969
    Abstract: A detection device includes a processing device and a storage medium. An ideal waveform signal indicating an ideal waveform of a servo pattern signal which is a result of reading a servo pattern recorded in a servo band of a magnetic tape by a servo reading element is stored in advance in the storage medium. The processing device acquires a servo band signal which is a result of reading the servo band by the servo reading element, and detects the servo pattern signal by comparing the servo band signal with the ideal waveform signal.
    Type: Grant
    Filed: October 27, 2022
    Date of Patent: February 13, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Toru Nakao, Tetsuya Kaneko, Yoichi Akano
  • Patent number: 11894027
    Abstract: A plurality of gap patterns are formed on a front surface of a substrate along a direction corresponding to a width direction of a magnetic tape. The first straight line region has a steeper inclined angle with respect to the first imaginary straight line than the second straight line region. Positions of both ends of the first straight line region and positions of both ends of the second straight line region are aligned in a direction corresponding to a width direction of a magnetic tape. Positions of the plurality of gap patterns are aligned in a longitudinal direction of the magnetic tape. A pulse signal is supplied to each of the plurality of gap patterns with a delay of a predetermined time from one side to the other side in a direction in which the plurality of gap patterns are arranged.
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: February 6, 2024
    Assignee: FUJIFILM CORPORATION
    Inventors: Toru Nakao, Tetsuya Kaneko, Yoichi Akano
  • Patent number: 11810603
    Abstract: A magnetic tape cartridge includes a case that accommodates a magnetic tape on which a plurality of servo bands and a plurality of data bands are formed, servo patterns being recorded in the servo bands, and a memory provided in the case. The memory stores servo pattern interval-related information related to a servo pattern interval determined for each of the plurality of data bands included in the magnetic tape. The servo pattern interval is commonly used for a plurality of division areas obtained by dividing the data band in a width direction of the magnetic tape, and is a representative interval between a first servo pattern and a second servo pattern.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: November 7, 2023
    Assignee: FUJIFILM CORPORATION
    Inventors: Junichi Nakamigawa, Yasushi Komori, Yusuke Kaneko, Tadashi Kira, Norihito Kasada, Toru Nakao
  • Publication number: 20230317108
    Abstract: A magnetic head includes a pair of servo reading elements corresponding to a pair of servo bands adjacent to each other in a width direction. A processor acquires a first signal based on a first result obtained by reading a servo pattern in a first servo band by a first servo reading element included in a pair of servo reading elements, acquires a second signal based on a second result obtained by reading the servo pattern in a second servo band by a second servo reading element included in the pair of servo reading elements, and outputs a deviation amount signal corresponding to a deviation amount in time between the first signal and the second signal.
    Type: Application
    Filed: February 22, 2023
    Publication date: October 5, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Toru Nakao, Tetsuya Kaneko, Yoichi Akano
  • Publication number: 20230317106
    Abstract: A magnetic head includes a first servo reading element pair, a second servo reading element pair, and a plurality of magnetic elements. The first servo reading element pair consists of a first servo reading element and a second servo reading element, the second servo reading element pair consists of a third servo reading element and a fourth servo reading element, the first servo reading element and the third servo reading element are disposed on one end side of the plurality of magnetic elements and read one servo band of the pair of servo bands, and the second servo reading element and the fourth servo reading element are disposed on the other end side of the plurality of magnetic elements and read the other servo band of the pair of servo bands.
    Type: Application
    Filed: February 21, 2023
    Publication date: October 5, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Toru NAKAO, Tetsuya KANEKO, Yoichi AKANO
  • Publication number: 20230290379
    Abstract: A magnetic tape cartridge includes a case in which a magnetic tape is housed, and an NVM of a cartridge memory provided in the case. The NVM stores cartridge information including an identification ID regarding an allowable range of temperature/humidity in using the magnetic tape, an upper limit of a preservation period of the magnetic tape, and an upper limit of a use frequency of the magnetic tape.
    Type: Application
    Filed: May 19, 2023
    Publication date: September 14, 2023
    Inventors: Yusuke KANEKO, Toru NAKAO, Atsushi MUSHA, Norihito KASADA
  • Patent number: 11705159
    Abstract: A magnetic tape cartridge includes a case in which a magnetic tape is housed, and an NVM of a cartridge memory provided in the case. The NVM stores cartridge information including an identification ID regarding an allowable range of temperature/humidity in using the magnetic tape, an upper limit of a preservation period of the magnetic tape, and an upper limit of a use frequency of the magnetic tape.
    Type: Grant
    Filed: February 2, 2022
    Date of Patent: July 18, 2023
    Assignee: FUJIFILM CORPORATION
    Inventors: Yusuke Kaneko, Toru Nakao, Atsushi Musha, Norihito Kasada
  • Publication number: 20230206947
    Abstract: A processing device stores a result of reading a reference servo pattern by a servo reading element from a magnetic tape in which the reference servo pattern is recorded, in the storage medium as an ideal waveform signal indicating an ideal waveform, acquires a servo band signal which is a result of reading a servo pattern recorded in a servo band of the magnetic tape by the servo reading element, and detects a servo pattern signal which is a result of reading the servo pattern by the servo reading element by comparing the ideal waveform signal stored in the storage medium with the servo band signal. The magnetic tape has a data band. The reference servo pattern is recorded in the data band.
    Type: Application
    Filed: December 22, 2022
    Publication date: June 29, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Yoichi AKANO, Toru NAKAO, Tetsuya KANEKO
  • Publication number: 20230206950
    Abstract: A detection device includes a processing device and a storage medium. The processing device stores a result of reading a reference servo pattern by a servo reading element in the storage medium as an ideal waveform signal, acquires a servo band signal which is a result of reading a servo pattern recorded in a servo band by the servo reading element, and detects a servo pattern signal which is a result of reading the servo pattern by the servo reading element by comparing the ideal waveform signal with the servo band signal. The reference servo pattern is recorded between a BOT section and an EOT section in a longitudinal direction of the magnetic tape.
    Type: Application
    Filed: December 22, 2022
    Publication date: June 29, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Tetsuya KANEKO, Toru NAKAO, Yoichi AKANO
  • Publication number: 20230206946
    Abstract: A magnetic tape cartridge includes a magnetic tape, and a storage medium in which information on the magnetic tape is stored. The magnetic tape has a recording surface. Data is recorded in the recording surface by a magnetic head in a state in which the magnetic tape is made to travel. The magnetic head is disposed at an inclined posture with respect to a width direction of the magnetic tape along the recording surface. Angle adjustment information obtained at a data recording timing which is a timing at which the data is recorded in the recording surface is stored in the storage medium. The angle adjustment information is information for adjusting an angle at which the magnetic head is inclined with respect to the width direction along the recording surface.
    Type: Application
    Filed: December 22, 2022
    Publication date: June 29, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Nagisa YAMASAKI, Toru Nakao, Atsushi Musha, Kento Takishima
  • Publication number: 20230206945
    Abstract: A magnetic tape cartridge includes a magnetic tape, and a storage medium in which information on the magnetic tape is stored. The magnetic tape has a recording surface. Data is recorded in the recording surface by a magnetic head in a state in which the magnetic tape is made to travel. The magnetic head is disposed at an inclined posture with respect to a width direction of the magnetic tape along the recording surface. Angle adjustment information obtained before the data is recorded in the recording surface is stored in the storage medium. The angle adjustment information is information for adjusting an angle at which the magnetic head is inclined with respect to the width direction along the recording surface.
    Type: Application
    Filed: December 22, 2022
    Publication date: June 29, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Nagisa YAMASAKI, Toru Nakao, Atsushi Musha, Kento Takishima
  • Publication number: 20230206948
    Abstract: A magnetic tape cartridge includes a case in which a magnetic tape is accommodated and a storage medium provided in the case. At least one of reading or writing of data is performed by a plurality of magnetic elements, which are linearly disposed, with respect to the magnetic tape pulled out from the case. A disposition direction of the plurality of magnetic elements is tilted toward an entire length direction side of the magnetic tape with respect to a width direction of the magnetic tape. The storage medium stores tilt feature information indicating a feature of tilt of the disposition direction with respect to the width direction.
    Type: Application
    Filed: February 17, 2023
    Publication date: June 29, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Toru NAKAO, Norihito Kasada, Tetsuya KANEKO, Atsushi MUSHA
  • Publication number: 20230206956
    Abstract: A detection device includes a processing device and a storage medium. The processing device stores a result of reading a servo pattern by a servo reading element from a magnetic tape in which the servo pattern is recorded in a servo band, in the storage medium as an ideal waveform signal indicating an ideal waveform, acquires a servo band signal which is a result of reading the servo band by the servo reading element, and detects a servo pattern signal indicating the servo pattern by comparing the ideal waveform signal stored in the storage medium with the servo band signal.
    Type: Application
    Filed: December 22, 2022
    Publication date: June 29, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Yoichi Akano, Toru Nakao, Tetsuya Kaneko
  • Publication number: 20230186944
    Abstract: Provided is a magnetic tape cartridge including: a case in which a magnetic tape on which a plurality of servo bands are formed is accommodated; and a storage medium provided in the case, in which the plurality of servo bands are formed at positions spaced apart from each other in a width direction of the magnetic tape along an entire length direction of the magnetic tape, and the storage medium stores pitch information capable of specifying a pitch in the width direction between the plurality of servo bands and distance information capable of specifying a distance between a plurality of servo reading elements that have read the plurality of servo bands.
    Type: Application
    Filed: February 2, 2023
    Publication date: June 15, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Toru NAKAO, Norihito KASADA, Tetsuya KANEKO, Atsushi MUSHA
  • Publication number: 20230169992
    Abstract: A detection device includes a processor. The processor compares a servo band signal, which is a result of reading a servo band in which a servo pattern is recorded from a magnetic tape including the servo band by a servo reading element, with a threshold value to detect a servo pattern signal indicating the servo pattern. The threshold value is determined in accordance with an angle formed by the servo pattern and the servo reading element.
    Type: Application
    Filed: November 28, 2022
    Publication date: June 1, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Tetsuya Kaneko, Toru Nakao, Yoichi AKANO
  • Publication number: 20230154494
    Abstract: Provided is a magnetic tape cartridge including: a case in which a magnetic tape is accommodated; and a storage medium provided in the case, in which the storage medium stores tension allowable range related information regarding an allowable range of tension applied to the magnetic tape.
    Type: Application
    Filed: January 23, 2023
    Publication date: May 18, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Toru NAKAO, Norihito KASADA, Tetsuya KANEKO, Atsushi MUSHA
  • Publication number: 20230140361
    Abstract: The noncontact communication medium for a recording medium cartridge includes a substrate, an IC chip that is electrically connected to one end and the other end of an antenna coil formed on the substrate and configured to induce power with application of a magnetic field from an outside, and a stress relaxing member that is provided between the IC chip and the substrate.
    Type: Application
    Filed: October 20, 2022
    Publication date: May 4, 2023
    Inventors: Kenji NISHIDA, Toru NAKAO