Patents by Inventor Hiroaki Takagi

Hiroaki Takagi 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: 20210317233
    Abstract: The purpose of the present invention is to provide an efficient and versatile method for granting an additional binding activity to an antibody by inserting a peptide sequence into the antibody. The present invention provides a method of granting a binding ability to a second target molecule to an antibody, comprising inserting an internal peptide sequence of a cyclic peptide into an Fc region of the antibody, wherein the cyclic peptide has the binding ability to the second target molecule different from a first target molecule to be recognized by the antibody.
    Type: Application
    Filed: July 31, 2019
    Publication date: October 14, 2021
    Inventors: Hiroaki Suga, Junichi Takagi
  • Publication number: 20210188578
    Abstract: A rotating device includes a shaft member, a counterpart member, a bearing, and a retaining member. The counterpart member includes a shaft insertion portion into which the shaft member is inserted. The bearing is disposed in the shaft insertion portion and interposed between the counterpart member and the shaft member. The bearing causes the counterpart member and the shaft member to be rotatable relative to each other. The retaining member is disposed on an end portion of the shaft member on one side in an axial direction of the shaft member. The counterpart member includes an opposing portion closer to the end portion of the shaft member on the one side in the axial direction than the bearing. The opposing portion faces the retaining member in the axial direction.
    Type: Application
    Filed: December 17, 2020
    Publication date: June 24, 2021
    Applicant: Ricoh Company, Ltd.
    Inventor: Hiroaki TAKAGI
  • Patent number: 11036157
    Abstract: An image forming apparatus includes an image bearer, a writing device, a partition, and a plurality of side members. The image bearer is configured to bear an image. The writing device is configured to write the image on the image bearer. The partition is disposed between the image bearer and the writing device. The plurality of side members is disposed facing and spaced apart from each other at an interval in an axial direction of the image bearer. The writing device is fixed to the plurality of side members and is spaced apart from the partition.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: June 15, 2021
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiroaki Takagi
  • Patent number: 11022921
    Abstract: An image forming apparatus includes a driven unit and a drive transmitter. The drive transmitter includes a drive source, a drive gear, and a driven gear. The drive source is configured to drive the driven unit. The drive gear is configured to receive a driving force from the drive source. The driven gear is meshed with the drive gear. The drive transmitter is configured to transmit the driving force from the drive source to the driven unit. The drive gear or the driven gear is a crowned gear crowning-processed and the crowned gear has a crowning amount less than 50 ?m.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: June 1, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yasuhiro Maehata, Hiroaki Takagi, Kenji Tomita
  • Patent number: 10877415
    Abstract: An image forming apparatus includes a drive device including a first drive transmission passage through which a driving force of a drive source is transmitted to a developer bearer via a first joint and a second drive transmission passage through which the driving force is transmitted to a rotary body via a second joint. The first drive transmission passage and the second drive transmission passage are defined such that one of a first drive transmission ratio to the first joint of the first drive transmission passage and a second drive transmission ratio to the second joint of the second drive transmission passage is an integral multiple of the other of the first drive transmission ratio from the drive source to the first joint of the first drive transmission passage and the second drive transmission ratio from the drive source to the second joint of the second drive transmission passage.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: December 29, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroaki Takagi, Kimiharu Yamazaki, Naoyuki Suido
  • Publication number: 20200326648
    Abstract: An image forming apparatus includes a driven unit and a drive transmitter. The drive transmitter includes a drive source, a drive gear, and a driven gear. The drive source is configured to drive the driven unit. The drive gear is configured to receive a driving force from the drive source. The driven gear is meshed with the drive gear. The drive transmitter is configured to transmit the driving force from the drive source to the driven unit. The drive gear or the driven gear is a crowned gear crowning-processed and the crowned gear has a crowning amount less than 50 ?m.
    Type: Application
    Filed: April 1, 2020
    Publication date: October 15, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Yasuhiro MAEHATA, Hiroaki TAKAGI, Kenji TOMITA
  • Publication number: 20200174395
    Abstract: An image forming apparatus includes an image bearer, a writing device, a partition, and a plurality of side members. The image bearer is configured to bear an image. The writing device is configured to write the image on the image bearer. The partition is disposed between the image bearer and the writing device. The plurality of side members is disposed facing and spaced apart from each other at an interval in an axial direction of the image bearer. The writing device is fixed to the plurality of side members and is spaced apart from the partition.
    Type: Application
    Filed: November 26, 2019
    Publication date: June 4, 2020
    Applicant: Ricoh Company, Ltd.
    Inventor: Hiroaki TAKAGI
  • Patent number: 10656565
    Abstract: A drive transmission device includes a drive source, a first drive transmitter and a second drive transmitter. The drive source generates a drive force. The second drive transmitter is coaxially arranged with the first drive transmitter and includes a material different from a material of the first drive transmitter. The drive force of the drive source is transmitted between the first drive transmitter and the second drive transmitter. The first drive transmitter is fastened to the second drive transmitter.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: May 19, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Shogo Nakamoto, Hiroaki Takagi
  • Publication number: 20200063851
    Abstract: A drive transmission device includes a first drive transmitter and a second drive transmitter. The first drive transmitter includes an internally toothed gear. The second drive transmitter is disposed coaxially to the first drive transmitter. The second drive transmitter is different in material from the first drive transmitter. The first drive transmitter is fastened to the second drive transmitter and configured to transmit driving force of a drive source to the second drive transmitter.
    Type: Application
    Filed: August 20, 2019
    Publication date: February 27, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Shogo NAKAMOTO, Hiroaki TAKAGI
  • Publication number: 20200004187
    Abstract: An image forming apparatus includes a drive device including a first drive transmission passage through which a driving force of a drive source is transmitted to a developer bearer via a first joint and a second drive transmission passage through which the driving force is transmitted to a rotary body via a second joint. The first drive transmission passage and the second drive transmission passage are defined such that one of a first drive transmission ratio to the first joint of the first drive transmission passage and a second drive transmission ratio to the second joint of the second drive transmission passage is an integral multiple of the other of the first drive transmission ratio from the drive source to the first joint of the first drive transmission passage and the second drive transmission ratio from the drive source to the second joint of the second drive transmission passage.
    Type: Application
    Filed: September 9, 2019
    Publication date: January 2, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Hiroaki Takagi, Kimiharu Yamazaki, Naoyuki Suido
  • Patent number: 10520870
    Abstract: An image forming apparatus includes a drive device including a first drive transmission passage through which a driving force of a drive source is transmitted to a developer bearer via a first joint and a second drive transmission passage through which the driving force is transmitted to a rotary body via a second joint. The first drive transmission passage and the second drive transmission passage are defined such that one of a first drive transmission ratio to the first joint of the first drive transmission passage and a second drive transmission ratio to the second joint of the second drive transmission passage is an integral multiple of the other of the first drive transmission ratio from the drive source to the first joint of the first drive transmission passage and the second drive transmission ratio from the drive source to the second joint of the second drive transmission passage.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: December 31, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroaki Takagi, Kimiharu Yamazaki, Naoyuki Suido
  • Publication number: 20190387980
    Abstract: A cuff includes a band that is wound around a measuring position where blood pressure is measured and an air bag that is provided on a measuring position side of the band and whose length in a length direction is shorter than an outer circumference of the measuring position. A first spacer and a second spacer are respectively provided at the ends in the length direction of the air bag. The band is wound around the measuring position so as to cover the first spacer and the second spacer and detachably fixed by a fixing portion to a surface on an opposite side to the measuring position side.
    Type: Application
    Filed: September 6, 2019
    Publication date: December 26, 2019
    Inventors: Hiroaki TAKAGI, Masaya TAMAMURA, Amane INOUE, Minoru NAKAGAWARA
  • Publication number: 20190286017
    Abstract: A drive transmission device includes a drive source, a first drive transmitter and a second drive transmitter. The drive source generates a drive force. The second drive transmitter is coaxially arranged with the first drive transmitter and includes a material different from a material of the first drive transmitter. The drive force of the drive source is transmitted between the first drive transmitter and the second drive transmitter. The first drive transmitter is fastened to the second drive transmitter.
    Type: Application
    Filed: March 6, 2019
    Publication date: September 19, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Shogo NAKAMOTO, Hiroaki Takagi
  • Patent number: 10268158
    Abstract: A drive transmission device, which is included in an image forming apparatus, includes an output body, an input body, and an intermediate body. The output body has a drive output portion. The input body has a drive input portion. The intermediate body is supported by a support side body that is one of the output body and the input body. The intermediate body includes a relay portion to receive a driving force applied by the drive output portion and to transmit the driving force to the drive input portion, and a retaining portion to prevent the intermediate body from falling from the support side body. A distance from a center of rotation of the intermediate body to a leading end of the retaining portion is greater than or equal to a distance from the center of rotation of the intermediate body to a leading end of the relay portion.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: April 23, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventor: Hiroaki Takagi
  • Patent number: 10248071
    Abstract: A drive transmitter that is applicable to an image forming apparatus includes a first coupler, a second coupler, and reinforcing ribs. The first coupler is mounted on an axial end of a first rotary shaft and is provided with extensions. The extensions extend in an axial direction of the first coupler and are arranged at intervals in a rotation direction thereof. The second coupler is mounted on an axial end of a second rotary shaft and is provided with contact parts to which the respective extensions contact between the first rotary shaft and the second rotary shaft upon drive transmission. The reinforcing ribs are provided to the respective extensions and reinforce the respective extensions.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: April 2, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Hiroaki Takagi, Junichi Ichikawa
  • Patent number: 10054896
    Abstract: A drive transmission device includes a rotation shaft, a drive transmitter attached to the rotation shaft to slide in an axial direction and including an engaging portion extending in the axial direction, and a coil spring to bias the drive transmitter to one side in the axial direction, and a shaft-side drive transmitter disposed on the rotation shaft. The coil spring includes a sparse portion and a dense portion. The shaft-side drive transmitter engages the engaging portion to prevent the drive transmitter from disengaging from the rotation shaft. The coil spring and the engaging portion satisfy C>A?B where A represents a length of the coil spring in a state in which the shaft-side drive transmitter retains the drive transmitter, B represents a compressed height of the coil spring, and C represents a length of the coil spring in the axial direction.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: August 21, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroaki Takagi, Kimiharu Yamazaki, Naoyuki Suido, Shogo Sakamoto
  • Publication number: 20180125458
    Abstract: An ultrasonic image generation system has a probe having an ultrasonic transducer configured to transmit and receive an ultrasonic signal, a processor configured to generate an ultrasonic image signal by processing a received signal of the ultrasonic transducer as well as to generate a drive signal that is supplied to the ultrasonic transducer, and a probe-side wireless communicator; and a terminal having a terminal-side wireless communicator configured to wirelessly communicate with the probe-side wireless communicator, a display configured to display an ultrasonic image based on the ultrasonic image signal, and an operation panel configured to input general measurement information, wherein the probe has a controller configured to determine control information necessary for generation of the drive signal and processing of the received signal from the general measurement information transmitted from the terminal.
    Type: Application
    Filed: January 5, 2018
    Publication date: May 10, 2018
    Inventors: Hiroaki TAKAGI, Naoto YONEDA, Naoto ADACHI, Masaya TAMAMURA, Amane INOUE
  • Publication number: 20180116636
    Abstract: An ultrasonic image generation system having an ultrasonic unit configured to transmit and receive an ultrasonic signal, a drive control/signal processing unit configured to repeat processing to generate an ultrasonic image signal by processing a received signal of the ultrasonic unit as well as to generate a drive signal that is supplied to the ultrasonic unit; and a display unit configured to repeat displaying an ultrasonic image based on the ultrasonic image signal, to stop updating of a displayed image in response to a stop signal input, and to resume updating of the displayed image in response to a start signal input, wherein the drive control/signal processing unit stops at least part of an operation in response to the stop signal input and resumes the stopped operation in response to the start signal input.
    Type: Application
    Filed: January 2, 2018
    Publication date: May 3, 2018
    Inventors: Naoto YONEDA, Naoto Adachi, Hiroaki Takagi, Masaya Tamamura, Amane Inoue
  • Publication number: 20180074455
    Abstract: A drive transmission device, which is included in an image forming apparatus, includes an output body, an input body, and an intermediate body. The output body has a drive output portion. The input body has a drive input portion. The intermediate body is supported by a support side body that is one of the output body and the input body. The intermediate body includes a relay portion to receive a driving force applied by the drive output portion and to transmit the driving force to the drive input portion, and a retaining portion to prevent the intermediate body from falling from the support side body. A distance from a center of rotation of the intermediate body to a leading end of the retaining portion is greater than or equal to a distance from the center of rotation of the intermediate body to a leading end of the relay portion.
    Type: Application
    Filed: September 14, 2017
    Publication date: March 15, 2018
    Applicant: Ricoh Company, Ltd.
    Inventor: Hiroaki TAKAGI
  • Patent number: 9879733
    Abstract: A power transmission device includes coaxially a first rotary body including a first gear on a drive source side, a second rotary body including a second gear on a driven side, a third rotary body including a third gear movably held to transmit a driving force, and a guide member disposed at one of the first gear, the second gear, and the third gear to contact a first end surface of a gear tooth of another of the first gear, the second gear, and the third gear, serving as a mating gear, to guide the first end surface between teeth of the one of the first gear, the second gear, and the third gear. The guide member extends toward the mating gear and a tip of the guide member is placed at a distance from an end of the one of the gears in the axial direction.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: January 30, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroaki Takagi, Naoyuki Suido, Keisuke Shimizu, Kimiharu Yamazaki