Patents by Inventor Toshihiro Kumagai

Toshihiro Kumagai 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: 11745524
    Abstract: There are provided a medium support section that forms a support surface that supports a medium before feeding; a feeding roller that sends out the medium supported by the medium support section in a feeding direction; and an apparatus main body, the medium support section is configured to switch between a stored state of being stored in the apparatus main body and a protruding state, the protruding state being a state where protrudes from a first side surface which is one of side surfaces that form a periphery of the apparatus main body, and in the protruding state of the medium support section, a downstream end of the support surface in the feeding direction is at a position close to a second side surface, which is a side surface opposite to the first side surface, between the first side surface and the second side surface.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: September 5, 2023
    Assignee: Seiko Epson Corporation
    Inventors: Nobuhisa Nomoto, Toshihiro Kumagai, Masaharu Iwamoto, Keiichi Okamura
  • Patent number: 11478123
    Abstract: A control apparatus controls an operation of a self-propelled mechanism of an endoscope. The control apparatus includes a drive circuit that outputs a motor current, a motor current detection circuit that acquires a value relating to magnitude of the motor current as a detection value, a storage circuit that stores a limit value relating to the detection value, and a control circuit that performs an operation as a first controller that controls the drive circuit so as to stop the motor when it is determined that the detection value exceeds a value relating to the limit value, and performs an operation as a second controller that controls the drive circuit so as to stop the motor when it is determined that the detection value exceeds the value relating to the limit value.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: October 25, 2022
    Assignee: OLYMPUS CORPORATION
    Inventors: Takashi Suzuki, Fumiyuki Onoda, Takashi Yamashita, Yasuaki Natori, Yoshitaka Umemoto, Toshihiro Kumagai, Takuro Onda
  • Publication number: 20220203717
    Abstract: There is provided a recording apparatus including: a medium support section that supports a medium before feeding; a feeding roller that sends out the medium; and an apparatus main body, in which the medium support section is configured to switch between a stored state of being stored in the apparatus main body and a protruding state, being a state where an upstream part in a feeding direction protrudes from a first side surface of the apparatus main body, in the protruding state of the medium support section, close to a second side surface, which is a side surface opposite to the first side surface, an assist roller that applies a sending force to the medium fed from the medium support section is provided upstream of the feeding roller in the feeding direction.
    Type: Application
    Filed: December 22, 2021
    Publication date: June 30, 2022
    Inventors: Nobuhisa NOMOTO, Toshihiro KUMAGAI, Masaharu IWAMOTO, Keiichi OKAMURA
  • Publication number: 20220203722
    Abstract: There are provided a medium support section that forms a support surface that supports a medium before feeding; a feeding roller that sends out the medium supported by the medium support section in a feeding direction; and an apparatus main body, the medium support section is configured to switch between a stored state of being stored in the apparatus main body and a protruding state, the protruding state being a state where protrudes from a first side surface which is one of side surfaces that form a periphery of the apparatus main body, and in the protruding state of the medium support section, a downstream end of the support surface in the feeding direction is at a position close to a second side surface, which is a side surface opposite to the first side surface, between the first side surface and the second side surface.
    Type: Application
    Filed: December 22, 2021
    Publication date: June 30, 2022
    Inventors: Nobuhisa NOMOTO, Toshihiro KUMAGAI, Masaharu IWAMOTO, Keiichi OKAMURA
  • Patent number: 10978970
    Abstract: An apparatus includes a rotation body, a motor, a drive controller, a rotating speed detector, a rotation error determination circuit, and a filter. The rotation body is provided on an outer peripheral surface of an elongated insertion section and configured to be rotatable around a longitudinal axis. The motor rotates the rotation body. The drive controller controls driving of the motor. The rotating speed detector detects a rotating speed of the motor based on an encoder signal output from an encoder. The rotation error determination circuit determines an error in rotation of the rotation body based on the detected rotating speed. The filter passes, as the encoder signal, only a signal having a frequency, outside a frequency band of a high-frequency signal of a high-frequency treatment instrument, of signals input to the rotating speed detector.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: April 13, 2021
    Assignee: OLYMPUS CORPORATION
    Inventors: Yoshitaka Umemoto, Takashi Suzuki, Toshihiro Kumagai, Takuro Onda
  • Publication number: 20200138266
    Abstract: A control apparatus controls an operation of a self-propelled mechanism of an endoscope. The control apparatus includes a drive circuit that outputs a motor current, a motor current detection circuit that acquires a value relating to magnitude of the motor current as a detection value, a storage circuit that stores a limit value relating to the detection value, and a control circuit that performs an operation as a first controller that controls the drive circuit so as to stop the motor when it is determined that the detection value exceeds a value relating to the limit value, and performs an operation as a second controller that controls the drive circuit so as to stop the motor when it is determined that the detection value exceeds the value relating to the limit value.
    Type: Application
    Filed: January 8, 2020
    Publication date: May 7, 2020
    Applicant: OLYMPUS CORPORATION
    Inventors: Takashi SUZUKI, Fumiyuki ONODA, Takashi YAMASHITA, Yasuaki NATORI, Yoshitaka UMEMOTO, Toshihiro KUMAGAI, Takuro ONDA
  • Publication number: 20200099320
    Abstract: An apparatus includes a rotation body, a motor, a drive controller, a rotating speed detector, a rotation error determination circuit, and a filter. The rotation body is provided on an outer peripheral surface of an elongated insertion section and configured to be rotatable around a longitudinal axis. The motor rotates the rotation body. The drive controller controls driving of the motor. The rotating speed detector detects a rotating speed of the motor based on an encoder signal output from an encoder. The rotation error determination circuit determines an error in rotation of the rotation body based on the detected rotating speed. The filter passes, as the encoder signal, only a signal having a frequency, outside a frequency band of a high-frequency signal of a high-frequency treatment instrument, of signals input to the rotating speed detector.
    Type: Application
    Filed: November 27, 2019
    Publication date: March 26, 2020
    Applicant: OLYMPUS CORPORATION
    Inventors: Yoshitaka UMEMOTO, Takashi SUZUKI, Toshihiro KUMAGAI, Takuro ONDA
  • Patent number: 9750394
    Abstract: In an endoscope system that obtains a captured image inside of a body cavity by use of an insertion unit of an endoscope apparatus which is inserted into the body cavity of a subject, an oscillator outputs an oscillation pulse signal, and receives a reflected pulse signal. A transmission line is provided along the insertion unit near an envelope of the insertion unit, and transmits a pulse signal output from the oscillator. A time calculating unit and an insertion length calculating unit obtain a time difference between the oscillation pulse signal and the reflected pulse signal on the basis of the oscillation pulse signal output by the oscillator and the reflected pulse signal received by the oscillator, and calculate an insertion length of the insertion unit on the basis of the obtained time difference.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: September 5, 2017
    Assignee: OLYMPUS CORPORATION
    Inventors: Toshihiro Kumagai, Hidenobu Kubo
  • Publication number: 20160242625
    Abstract: In an endoscope system that obtains a captured image inside of a body cavity by use of an insertion unit of an endoscope apparatus which is inserted into the body cavity of a subject, an oscillator outputs an oscillation pulse signal, and receives a reflected pulse signal. A transmission line is provided along the insertion unit near an envelope of the insertion unit, and transmits a pulse signal output from the oscillator. A time calculating unit and an insertion length calculating unit obtain a time difference between the oscillation pulse signal and the reflected pulse signal on the basis of the oscillation pulse signal output by the oscillator and the reflected pulse signal received by the oscillator, and calculate an insertion length of the insertion unit on the basis of the obtained time difference.
    Type: Application
    Filed: May 2, 2016
    Publication date: August 25, 2016
    Applicant: OLYMPUS CORPORATION
    Inventors: Toshihiro KUMAGAI, Hidenobu KUBO
  • Patent number: 8450478
    Abstract: Disclosed is an ionic liquid which is stable over a wide potential range and exhibits a high ionic conductivity. The ionic liquid comprises a cyclic guanidine salt represented by the following formula (1): wherein R1 and R2 each is independently an alkyl group or an alkoxyalkyl group, X is a methylene group, an oxygen atom, a sulfur atom, or R3N; R3 is an alkyl group, an alkoxyalkyl group, or an acyl group; l, m, and n each is an integer in the range of 1-6; Y? is a monovalent anion such as (R4SO2)2N?, R4SO3?, R4COO?, BF4?, PF6?, NO3?, (CN)2N?, (CHO)2N?, NCS?, R4OSO3?, R4SO2S?, and a halogen ion. The ionic liquid is useful for a variety of electrolytes, particularly for electrolytes of electrochemical cells.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: May 28, 2013
    Assignee: Nippon Steel & Sumikin Chemical Co., Ltd.
    Inventors: Atsushi Kawada, Aya Tashiro, Toshihiro Kumagai
  • Publication number: 20120123115
    Abstract: Disclosed is an ionic liquid which is stable over a wide potential range and exhibits a high ionic conductivity. The ionic liquid comprises a cyclic guanidine salt represented by the following formula (1): wherein R1 and R2 each is independently an alkyl group or an alkoxyalkyl group, X is a methylene group, an oxygen atom, a sulfur atom, or R3N; R3 is an alkyl group, an alkoxyalkyl group, or an acyl group; l, m, and n each is an integer in the range of 1-6; Y? is a monovalent anion such as (R4SO2)2N?, R4SO3?, R4COO?, BF4?, PF6?, NO3?, (CN)2N?, (CHO)2N?, NCS?, R4OSO3?, R4SO2S?, and a halogen ion. The ionic liquid is useful for a variety of electrolytes, particularly for electrolytes of electrochemical cells.
    Type: Application
    Filed: January 25, 2012
    Publication date: May 17, 2012
    Inventors: Atsushi Kawada, Aya Tashiro, Toshihiro Kumagai
  • Patent number: 8129543
    Abstract: Disclosed is an ionic liquid which is stable over a wide potential range and exhibits a high ionic conductivity. The ionic liquid comprises a cyclic guanidine salt represented by the following formula (1): wherein R1 and R2 each is independently an alkyl group or an alkoxyalkyl group, X is a methylene group, an oxygen atom, a sulfur atom, or R3N; R3 is an alkyl group, an alkoxyalkyl group, or an acyl group; l, m, and n each is an integer in the range of 1-6; Y? is a monovalent anion such as (R4SO2)2N?, R4SO3?, R4COO?, BF4?, PF6?, NO3?, (CN)2N?, (CHO)2N?, NCS?, R4OSO3?, R4SO2S?, and a halogen ion. The ionic liquid is useful for a variety of electrolytes, particularly for electrolytes of electrochemical cells.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: March 6, 2012
    Assignee: Nippon Steel Chemical Co., Ltd.
    Inventors: Atsushi Kawada, Aya Tashiro, Toshihiro Kumagai
  • Publication number: 20100121074
    Abstract: Disclosed is an ionic liquid which is stable over a wide potential range and exhibits a high ionic conductivity. The ionic liquid comprises a cyclic guanidine salt represented by the following formula (1): wherein R1 and R2 each is independently an alkyl group or an alkoxyalkyl group, X is a methylene group, an oxygen atom, a sulfur atom, or R3N; R3 is an alkyl group, an alkoxyalkyl group, or an acyl group; l, m, and n each is an integer in the range of 1-6; Y? is a monovalent anion such as (R4SO2)2N?, R4SO3?, R4COO?, BF4?, PF6?, NO3?, (CN)2N?, (CHO)2N?, NCS?, R4OSO3?, R4SO2S?, and a halogen ion. The ionic liquid is useful for a variety of electrolytes, particularly for electrolytes of electrochemical cells.
    Type: Application
    Filed: February 26, 2008
    Publication date: May 13, 2010
    Applicant: NIPPON STEEL CHEMICAL CO., LTD.
    Inventors: Atsushi Kawada, Aya Tashiro, Toshihiro Kumagai
  • Publication number: 20080204484
    Abstract: A serial printer includes a first direction-determining unit that determines a carriage moving direction for a subsequent printing pass that follows a current printing pass, in which a carriage is currently moving, on the basis of a target position at which the carriage is to stop. The printer also includes a printing-information-calculating unit that calculates printing information necessary for executing the subsequent pass, on the basis of the carriage moving direction determined by the first direction-determining unit. A second direction-determining unit determines a carriage moving direction for the subsequent pass on the basis of an actual carriage stop position. A printing execution unit executes printing in accordance with the printing information calculated by the first printing-information-calculating unit. The printing is executed if it is determined that the carriage moving directions detected by first and second direction-determining units are the same.
    Type: Application
    Filed: February 20, 2008
    Publication date: August 28, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Toshihiro KUMAGAI
  • Publication number: 20070195367
    Abstract: The present invention provides a computer readable medium recording a printer control program for executing in a computer a command generation of generating a command that instructs a printer on operation and a command transmission of converting a command containing a predetermined amount of data into a packet and transmitting the packet command, wherein the computer executes: generating a preprocessing command for actuating a printing mechanism before a coloring agent is attached to a printing medium, and generating a dummy command to be included in a packet so as to obtain the predetermined amount of data, which will be discarded by the printer, and generating one or more packets including the dummy command and the preprocessing command.
    Type: Application
    Filed: February 22, 2007
    Publication date: August 23, 2007
    Applicant: Seiko Epson Corporation
    Inventors: Toshihiro Kumagai, Kiyotaka Nishimura, Norihiko Nakajima
  • Publication number: 20010021039
    Abstract: The printer 10 clears the printing data PDAT remaining in the data buffer which is formed in a RAM 14, when a printer cable 50 is unplugged from the printer 10 and/or from a computer 30. As a result, it prevents the printer 10 from performing an unnecessary printing on the basis of the printing data PDAT remaining in the data buffer.
    Type: Application
    Filed: February 21, 2001
    Publication date: September 13, 2001
    Inventors: Makoto Oyanagi, Toshihiro Kumagai
  • Patent number: 5551735
    Abstract: A tube fitting includes a tubular body, an annular clamping member, a tubular inner pipe, a releasing member, and a sealing ring. The clamping member is disposed axially movably in an axial bore of the body, and includes a claw and an outer peripheral portion. The claw has an inclined surface projecting in a centripetal direction as the inclined surface extends away from an opening of the body, and engages with an outer peripheral surface of a tube fitted into the axial bore via the opening. The outer peripheral portion contacts with a regulatory surface of the body, and is pressed in a centripetal direction thereby, and accordingly presses the claw onto the outer peripheral surface of the tube. The inner pipe is disposed in the tube coaxially with an inner peripheral surface of the tube at an end of the tube. The releasing member includes a tubular base and a leading end. The base is disposed axially movably in the axial bore on an outer side with respect to the regulatory surface.
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: September 3, 1996
    Assignees: Tokai Rubber Industries, Ltd., Kabushiki Kaisha AOI
    Inventors: Akira Takayanagi, Toshihiro Kumagai, Kinji Hosoya
  • Patent number: 5378024
    Abstract: A quick connector comprises a tubular-shaped female member, a tubular-shaped male member, and an engager member which comprises a "C" ring-shaped and tapered stopper whose diameter can be increased in said annular-shaped concave, and which has the smaller diameter ends having the small diameter at the inner side of said female member and having the large diameter at the side of said opened flange to engage said engager projection, and which has the larger diameter ends having the diameter larger than that of said opened flange of said female member to face the inside end surface of said opened flange; a regulator which is installed in the axial direction to said stopper, and which is projected in the centrifugal directions than do the larger diameter ends of said stopper, and which is brought into contact with the inner peripheral surface of said annular-shaped concave to regulate the displacement in the radial direction of said stopper; and a linkage for connecting said stopper and said regulator.
    Type: Grant
    Filed: March 25, 1993
    Date of Patent: January 3, 1995
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Toshihiro Kumagai, Hirokazu Kitamura, Tsutomu Kodama, Kazuhiro Kato
  • Patent number: 5320390
    Abstract: A quick connector includes a male member, a female member and an engager claw member. The male member includes a ring-shaped engager. The female member includes a receiver hole having an opening into which the male member is inserted, a ring-shaped stopper surface disposed oppositely to the opening, and a regulatory inner peripheral surface extending from the periphery of the stopper surface in an axial direction. The engager claw member disposed in the receiver hole of the female member, and it includes a ring-shaped base disposed movably in an axial direction, arms extending from the base to the opening in an axial direction and adapted for being elastically deformable in a radial direction, and a claw disposed so as to extend from each of the arms and adapted for engaging with the engager of the male member.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: June 14, 1994
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Tsutomu Kodama, Hirokazu Kitamura, Toshihiro Kumagai, Kazuhiro Kato