Patents by Inventor Masakazu Igarashi

Masakazu Igarashi 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: 11040557
    Abstract: A cutting head-including printer includes at least one driving roller, a pair of side pinch rollers, a center pinch roller provided between the pair of side pinch rollers, and a roller moving mechanism that causes the center pinch roller to approach, or to be separated from, the at least one driving roller. The cutting head-including printer sets whether to perform cutting after printing or to perform the printing after the cutting. During the cutting performed after the printing, the cutting head-including printer separates the center pinch roller from the at least one driving roller. During the cutting performed before the printing, the cutting head-including printer locates the center pinch roller at a position where the center pinch roller holds a recording medium together with the at least one driving roller.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: June 22, 2021
    Assignee: Roland DG Corporation
    Inventor: Masakazu Igarashi
  • Patent number: 11007666
    Abstract: A cutting machine can be configured to set a cutting line with respect to a cutting material that is placed on a supporting platform, cut the cutting material along one cutting line that intersect with and changes direction at a second cutting line at a corner portion, leaving a part of the cutting material connected along a predetermined distance from a point of intersection of the corner portion, and cutting along the other cutting line so as to not leave a connected part, up to a predetermined distance from the point of intersection of the corner portion.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: May 18, 2021
    Assignee: Roland DG Corporation
    Inventors: Shinya Yamamoto, Masakazu Igarashi, Takeshi Tozuka, Tetsuhiro Kunifuji
  • Publication number: 20200276726
    Abstract: A cutting machine can be configured to set a cutting line with respect to a cutting material that is placed on a supporting platform, cut the cutting material along one cutting line that intersect with and changes direction at a second cutting line at a corner portion, leaving a part of the cutting material connected along a predetermined distance from a point of intersection of the corner portion, and cutting along the other cutting line so as to not leave a connected part, up to a predetermined distance from the point of intersection of the corner portion.
    Type: Application
    Filed: May 14, 2020
    Publication date: September 3, 2020
    Inventors: Shinya Yamamoto, Masakazu Igarashi, Takeshi Tozuka, Tetsuhiro Kunifuji
  • Publication number: 20200171858
    Abstract: A cutting head-including printer includes at least one driving roller, a pair of side pinch rollers, a center pinch roller provided between the pair of side pinch rollers, and a roller moving mechanism that causes the center pinch roller to approach, or to be separated from, the at least one driving roller. The cutting head-including printer sets whether to perform cutting after printing or to perform the printing after the cutting. During the cutting performed after the printing, the cutting head-including printer separates the center pinch roller from the at least one driving roller. During the cutting performed before the printing, the cutting head-including printer locates the center pinch roller at a position where the center pinch roller holds a recording medium together with the at least one driving roller.
    Type: Application
    Filed: November 26, 2019
    Publication date: June 4, 2020
    Inventor: Masakazu IGARASHI
  • Patent number: 10486443
    Abstract: A controller includes a cutter movement controller that controls a value of an electric current to flow in a voice coil motor to apply a first electromagnetic force to a holder in a downward direction for a first time duration, then to apply the first electromagnetic force to the holder in an upward direction for a second time duration shorter than the first time duration, to pause the supply of the electric current to the voice coil motor for a third time duration longer than the second time duration, then to apply a third electromagnetic force, which is smaller than, or equal to, the first electromagnetic force and is an electromagnetic force applied to cut a cutting target, to the holder in the downward direction for a fourth time duration longer than the first time duration, and thus to cause a cutter to contact the cutting target, and a cutting controller that, after a predetermined time duration from the time when the electric current starts to flow in the voice coil motor, controls a carriage and a con
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: November 26, 2019
    Assignee: ROLAND DG CORPORATION
    Inventors: Shinya Yamamoto, Kiyoshi Fujimoto, Masakazu Igarashi
  • Publication number: 20190308408
    Abstract: Job types include a first job type in which a second process is performed after a first process and a second job type in which the first process is performed and the second process is not performed. In a printer, a recording medium is allowed to be sandwiched by a center pinching roller and driving rollers. A controller of the printer includes a first primary elevation controller that controls the center pinching roller such that the center pinching roller stays down on the driving rollers to hold the recording medium in performing the first process in the first job type and a first secondary elevation controller that controls the center pinching roller to move upward and stay away from the driving rollers in performing the first process in the second job type.
    Type: Application
    Filed: April 4, 2019
    Publication date: October 10, 2019
    Inventors: Shinya YAMAMOTO, Masakazu IGARASHI, Kiyomasa IMAIZUMI
  • Patent number: 10369822
    Abstract: A printer includes a motor power supply line connecting a carriage motor with a power source, a sensor power supply line connecting a rotary encoder with the power source, a circuit breaker provided on the motor power supply line and interrupting electrical power if a cover sensor detects that a front cover is open and permit connection if the cover sensor detects that the front cover is closed, and a controller controlling the carriage motor and a recording head based on a position of a carriage detected by the rotary encoder.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: August 6, 2019
    Assignee: ROLAND DG CORPORATION
    Inventors: Shinya Yamamoto, Masakazu Igarashi, Kiyomasa Imaizumi, Takeshi Nakanishi
  • Publication number: 20190061386
    Abstract: A controller includes a cutter movement controller that controls a value of an electric current to flow in a voice coil motor to apply a first electromagnetic force to a holder in a downward direction for a first time duration, then to apply the first electromagnetic force to the holder in an upward direction for a second time duration shorter than the first time duration, to pause the supply of the electric current to the voice coil motor for a third time duration longer than the second time duration, then to apply a third electromagnetic force, which is smaller than, or equal to, the first electromagnetic force and is an electromagnetic force applied to cut a cutting target, to the holder in the downward direction for a fourth time duration longer than the first time duration, and thus to cause a cutter to contact the cutting target, and a cutting controller that, after a predetermined time duration from the time when the electric current starts to flow in the voice coil motor, controls a carriage and a con
    Type: Application
    Filed: August 23, 2018
    Publication date: February 28, 2019
    Inventors: Shinya YAMAMOTO, Kiyoshi FUJIMOTO, Masakazu IGARASHI
  • Publication number: 20170326893
    Abstract: A printer includes a motor power supply line connecting a carriage motor with a power source, a sensor power supply line connecting a rotary encoder with the power source, a circuit breaker provided on the motor power supply line and interrupting electrical power if a cover sensor detects that a front cover is open and permit connection if the cover sensor detects that the front cover is closed, and a controller controlling the carriage motor and a recording head based on a position of a carriage detected by the rotary encoder.
    Type: Application
    Filed: May 11, 2017
    Publication date: November 16, 2017
    Inventors: Shinya YAMAMOTO, Masakazu IGARASHI, Kiyomasa IMAIZUMI, Takeshi NAKANISHI
  • Patent number: 9463586
    Abstract: A production device (20) of a molded foam body includes an upper mold (21) and a lower mold (22) having a cavity (23) formed between mold surfaces (21a, 22a) facing each other, wherein a raw foam material is supplied on the mold surface (22a) of the lower mold (22) and a hard material (3) is detachably arranged on the mold surface (21a) of the upper mold (21), and the raw foam material is foamed in the cavity (23) with the hard material (3) arranged on the mold surface (21a) of the upper mold (21) to form a foam body and a portion other than a projection portion (11) of the hard material (3) is fixed to the foam body to form the molded foam body in which the projection portion (11) projects from the foam body, and wherein on the mold surface (21a) of the upper mold (21), a concave arrangement portion (28) that is opened toward the lower mold (22) side and on which the projection portion (11) is arranged is formed, and a pivotable mold (27) that opens and closes the concave arrangement portion (28) from the lo
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: October 11, 2016
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Masakazu Igarashi
  • Patent number: 9085105
    Abstract: A mold for foam molding which can sufficiently prevent burrs from being formed on a molded product, and a foam molding method using the mold are provided. A groove 6 into which a packing seal is to be fitted is formed in a mating surface 3a of a lower mold 3 so as to extend around a cavity 7. The groove 6 has a deep groove portion 6a which is deeply recessed from the mating surface 3a, and a shallow groove portion 6b which is located on the cavity 7 side with respect to the deep groove portion 6a and which continues to the deep groove portion 6a. A portion of the mating surface 3a that extends from its edge on the cavity 7 side down to the groove 6 has a width “a” of from 0.1 mm to 10 mm. A packing seal 5 has a base portion 5a which is inserted into the deep groove portion 6a, and an overhang portion 5b which continues to the base portion 5a and is engaged with the shallow groove portion 6b.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: July 21, 2015
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Hirokazu Haraguchi, Masanori Okumura, Taichi Itabashi, Masakazu Igarashi
  • Publication number: 20130277877
    Abstract: A production device (20) of a molded foam body includes an upper mold (21) and a lower mold (22) having a cavity (23) formed between mold surfaces (21a, 22a) facing each other, wherein a raw foam material is supplied on the mold surface (22a) of the lower mold (22) and a hard material (3) is detachably arranged on the mold surface (21a) of the upper mold (21), and the raw foam material is foamed in the cavity (23) with the hard material (3) arranged on the mold surface (21a) of the upper mold (21) to form a foam body and a portion other than a projection portion (11) of the hard material (3) is fixed to the foam body to form the molded foam body in which the projection portion (11) projects from the foam body, and wherein on the mold surface (21a) of the upper mold (21), a concave arrangement portion (28) that is opened toward the lower mold (22) side and on which the projection portion (11) is arranged is formed, and a pivotable mold (27) that opens and closes the concave arrangement portion (28) from the lo
    Type: Application
    Filed: December 16, 2011
    Publication date: October 24, 2013
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Masakazu Igarashi
  • Publication number: 20110216435
    Abstract: A microwave-assisted magnetic recording head includes: a main magnetic pole that generates a recording magnetic field to be recorded on a magnetic recording medium; a shield; and an oscillator that is provided between the main magnetic pole and the shield and generates a microwave magnetic field. The microwave-assisted magnetic recording head is provided with a thermal expansion device for adjusting a relative position between the oscillator and the main magnetic pole so as to be able to independently adjust a recording magnetic field from the main magnetic pole and a microwave magnetic field from the oscillator.
    Type: Application
    Filed: February 1, 2011
    Publication date: September 8, 2011
    Applicant: Hitachi, Ltd.
    Inventors: MASATO SHIIMOTO, Masakazu Igarashi, Masaru Furukawa
  • Publication number: 20110062613
    Abstract: A mold for foam molding which can sufficiently prevent burrs from being formed on a molded product, and a foam molding method using the mold are provided. A groove 6 into which a packing seal is to be fitted is formed in a mating surface 3a of a lower mold 3 so as to extend around a cavity 7. The groove 6 has a deep groove portion 6a which is deeply recessed from the mating surface 3a, and a shallow groove portion 6b which is located on the cavity 7 side with respect to the deep groove portion 6a and which continues to the deep groove portion 6a. A portion of the mating surface 3a that extends from its edge on the cavity 7 side down to the groove 6 has a width “a” of from 0.1 mm to 10 mm. A packing seal 5 has a base portion 5a which is inserted into the deep groove portion 6a, and an overhang portion 5b which continues to the base portion 5a and is engaged with the shallow groove portion 6b.
    Type: Application
    Filed: May 21, 2009
    Publication date: March 17, 2011
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Hirokazu Haraguchi, Masanori Okumura, Taichi Itabashi, Masakazu Igarashi