Patents by Inventor Takayuki Seki
Takayuki Seki 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: 11970390Abstract: The present disclosure provides a method for producing a microchannel device, which can form a channel that has high hydrophobicity, high solvent resistance as well, and also resistance to heat and damage, on demand with high accuracy, and produces the microchannel device at a low cost, while having high productivity. The method for producing a microchannel device includes: forming a channel pattern from a hydrophobic resin on a porous substrate by an electrophotographic method; melting the channel pattern by heat to allow the channel pattern to permeate into the porous substrate, thereby forming a channel in the inside of the porous substrate.Type: GrantFiled: February 22, 2022Date of Patent: April 30, 2024Assignee: Canon Kabushiki KaishaInventors: Takeshi Yamamoto, Jun Miura, Keiji Miyazaki, Hiroki Tanaka, Makoto Fukatsu, Akihisa Matsukawa, Takayuki Kanazawa, Keigo Mizusawa, Masanori Seki, Masanori Tanaka
-
Patent number: 11966178Abstract: A heating device includes a heater, a holder, a device frame, a primary positioner, a secondary positioner, and a tertiary positioner. The heater includes a heat generator. The holder holds the heater. The device frame is configured to support the holder. The primary positioner is configured to position the heater and the holder in a longitudinal direction of the heater. The secondary positioner is configured to position the holder and the device frame in the longitudinal direction of the heater. The tertiary positioner is configured to position the device frame and a body of an image forming apparatus in the longitudinal direction of the heater. The primary positioner and one of the secondary positioner and the tertiary positioner are disposed on an identical side defined by a center of the heat generator in the longitudinal direction of the heater.Type: GrantFiled: September 13, 2022Date of Patent: April 23, 2024Assignee: RICOH COMPANY, LTD.Inventors: Yuusuke Furuichi, Tomoya Adachi, Yukimichi Someya, Takayuki Seki
-
Publication number: 20240106049Abstract: A battery case of the present disclosure includes a lower case for housing a battery with the upper side of the lower case opened; and an upper case provided on the upper side of the lower case to cover the battery. The lower case includes a lower case bottom surface on which the battery is placed and a lower case side surface extending upward from the edge of the lower case bottom surface. The lower case side surface includes, on its side where a module terminal of the battery is disposed, a cut part cut downward in such a way that the height of the lower case side surface becomes lower than the height of a position of the module terminal.Type: ApplicationFiled: September 6, 2023Publication date: March 28, 2024Inventors: Yoshinori GOTO, Toshiyuki SEKI, Takayuki MITA, Kouji HASHIMOTO
-
Publication number: 20240092595Abstract: A conveyance device includes a conveyance member, a guide, and a rotator. The conveyance member has a conveyance surface with a joint, the conveyance member to convey an object to be conveyed, with the object on the conveyance surface. The guide approaches the conveyance surface and guides the object from or to the conveyance member. The rotator contacts the conveyance surface. The guide displaces in a direction perpendicular to the conveyance surface, in conjunction with displacement of the rotator when the rotator contacts the joint.Type: ApplicationFiled: September 18, 2023Publication date: March 21, 2024Inventors: Kohki ASADA, Kenji NOZAWA, Genichiroh KAWAMICHI, Takayuki SEKI, Kazuaki KAMIHARA, Ryusaku HIDA
-
Publication number: 20240084853Abstract: To provide an axle bearing having a low torque property and superior bearing lifetime. A hub bearing 6 is configured to rotatably support a wheel of a vehicle, and has a grease composition 10 sealed in an inner space thereof. The grease composition 10 contains a base oil and a thickener. The shear stress of the grease composition at the shear rate of 1,000-10,000 s?1 at 25° C. is 3,000 Pa or less. The viscosity of the grease composition is 1 Pas or less. The yield stress of the grease composition at 25° C. measured by a dynamic viscoelasticity analysis method using a rheometer is 1,300-3,000 Pa.Type: ApplicationFiled: October 8, 2020Publication date: March 14, 2024Inventors: Takayuki KAWAMURA, Ryouta KONDOU, Makoto SEKI, Susumu YAMAJI
-
Patent number: 11604425Abstract: A fixing device includes a fixing rotator, an opposing rotator, a temperature detector, and a support. The fixing rotator has a hollow and heats an image to fix the image onto a recording medium. The opposing rotator forms a fixing nip between the fixing rotator and the opposing rotator. The temperature detector includes an exposed conductive portion. The support has conductivity and is disposed in the hollow of the fixing rotator to support the fixing rotator at the fixing nip. The support has at least one of a recessed portion or an opening at a position facing the exposed conductive portion of the temperature detector.Type: GrantFiled: January 24, 2022Date of Patent: March 14, 2023Assignee: RICOH COMPANY LTD.Inventors: Takayuki Seki, Yuusuke Furuichi
-
Publication number: 20230075153Abstract: An arithmetic device includes a first arithmetic chip configured to perform arithmetic processing for realizing driving assistance functions of a vehicle, and a second arithmetic chip configured to perform arithmetic processing for realizing the driving assistance functions of the vehicle, wherein, among the driving assistance functions, second functions realized by the first arithmetic chip along with the second arithmetic chip includes a function of providing at least some of first functions realized without depending on arithmetic processing of the second arithmetic chip in a state in which a task imposed on a driver has been reduced, as compared to the first functions.Type: ApplicationFiled: August 31, 2022Publication date: March 9, 2023Inventors: Takayuki Seki, Kazuki Yahata
-
Patent number: 11550249Abstract: A heating device (9) includes a heater (22), a holder (23), a device frame (40), a primary positioner (A), a secondary positioner (B), and a tertiary positioner (C). The heater includes a heat generator (60). The holder holds the heater. The device frame is configured to support the holder. The primary positioner is configured to position the heater and the holder in a longitudinal direction of the heater. The secondary positioner is configured to position the holder and the device frame in the longitudinal direction of the heater. The tertiary positioner is configured to position the device frame and a body of an image forming apparatus in the longitudinal direction of the heater. The primary positioner and one of the secondary positioner and the tertiary positioner are disposed on an identical side defined by a center of the heat generator in the longitudinal direction of the heater.Type: GrantFiled: September 17, 2019Date of Patent: January 10, 2023Assignee: RICOH COMPANY, LTD.Inventors: Yuusuke Furuichi, Tomoya Adachi, Yukimichi Someya, Takayuki Seki
-
Publication number: 20230004108Abstract: A heating device includes a heater, a holder, a device frame, a primary positioner, a secondary positioner, and a tertiary positioner. The heater includes a heat generator. The holder holds the heater. The device frame is configured to support the holder. The primary positioner is configured to position the heater and the holder in a longitudinal direction of the heater. The secondary positioner is configured to position the holder and the device frame in the longitudinal direction of the heater. The tertiary positioner is configured to position the device frame and a body of an image forming apparatus in the longitudinal direction of the heater. The primary positioner and one of the secondary positioner and the tertiary positioner are disposed on an identical side defined by a center of the heat generator in the longitudinal direction of the heater.Type: ApplicationFiled: September 13, 2022Publication date: January 5, 2023Applicant: Ricoh Company, Ltd.Inventors: Yuusuke FURUICHI, Tomoya ADACHI, Yukimichi SOMEYA, Takayuki SEKI
-
Publication number: 20220306132Abstract: Provided is a mobile object control system mounted on a mobile object in which driver assistance control is executed based on information on a to-be-monitored object, comprising a first control system including a first processor configured to acquire information from at least one or more first sensors and to calculate first information on a to-be-monitored object from the acquired information, where the first control system can deliver a calculation result of the first information to a second control system, where the second control system includes a second processor configured to acquire information acquired from at least one or more second sensors different from the first sensors and to calculate second information on a to-be-monitored object based on the calculation result delivered from the first control system and information acquired from the second sensors.Type: ApplicationFiled: February 1, 2022Publication date: September 29, 2022Inventor: Takayuki SEKI
-
Publication number: 20220291610Abstract: A fixing device includes a fixing rotator, an opposing rotator, a temperature detector, and a support. The fixing rotator has a hollow and heats an image to fix the image onto a recording medium. The opposing rotator forms a fixing nip between the fixing rotator and the opposing rotator. The temperature detector includes an exposed conductive portion. The support has conductivity and is disposed in the hollow of the fixing rotator to support the fixing rotator at the fixing nip. The support has at least one of a recessed portion or an opening at a position facing the exposed conductive portion of the temperature detector.Type: ApplicationFiled: January 24, 2022Publication date: September 15, 2022Applicant: Ricoh Company, Ltd.Inventors: Takayuki SEKI, Yuusuke FURUICHI
-
Patent number: 11429043Abstract: An image forming apparatus includes a heating device including a rotator member, a heating member configured to heat the rotator member. The heating member is switchable between a first heat generation state in which an amount of heat generated on a first side is larger than an amount of heat generated on a second side in the intersection direction and a second heat generation state in which the amount of heat generated on the second side is larger than the amount of heat generated on the first side, The image forming apparatus is configured to switch between the first heat generation state and the second heat generation state while executing a job of continuously forming an image on a plurality of recording media having a same length in the intersecting direction.Type: GrantFiled: February 24, 2021Date of Patent: August 30, 2022Assignee: RICOH COMPANY, LTD.Inventor: Takayuki Seki
-
Patent number: 11378904Abstract: A heating device includes a rotator, an opposed rotator configured to contact the rotator to form a nip, a heater configured to heat the rotator, and a plurality of pressing devices. The heater includes a first portion and a second portion. The second portion of the heater generates a smaller amount of heat than the first portion of the heater. The pressing devices are arranged in a longitudinal direction of the heater and each configured to press at least one of the rotator and the opposed rotator and cause the rotator and the opposed rotator to press each other. The pressing devices include a first pressing device corresponding to the first portion of the heater and a second pressing device corresponding to the second portion of the heater, and the first pressing device generates a smaller pressing force than the second pressing device.Type: GrantFiled: November 3, 2020Date of Patent: July 5, 2022Assignee: Ricoh Company, LTD.Inventor: Takayuki Seki
-
Patent number: 11269274Abstract: A heating device includes an endless belt that rotates and a pressure rotator that rotates in a rotation direction. The pressure rotator contacts an outer circumferential surface of the endless belt to form a nip therebetween, through which a heating target having a particular width in an axial direction of the pressure rotator is conveyed. A heater includes a heat generator that defines a conveyance span in the axial direction of the pressure rotator, where the heating target is conveyed, and a non-conveyance span in the axial direction of the pressure rotator, where the heating target is not conveyed. A non-conveyance span temperature detector is disposed opposite the pressure rotator in the non-conveyance span of the heat generator. The non-conveyance span temperature detector detects a temperature of the pressure rotator.Type: GrantFiled: October 17, 2019Date of Patent: March 8, 2022Assignee: RICOH COMPANY, LTD.Inventors: Yuusuke Furuichi, Takayuki Seki, Tomoya Adachi
-
Patent number: 11143996Abstract: A heating device includes an endless belt, an opposed rotator, a heater, and a heat transfer portion. The opposed rotator is configured to contact the endless belt to form a nip between the endless belt and the opposed rotator. The heater includes a plurality of resistive heat generators configured to heat the endless belt. The heater is configured to generate a larger amount of heat on a first side of the heater than a second side of the heater in a longitudinal direction of the heater. The first side is opposite to the second side with respect to a center position of a heating span of all the plurality of energized resistive heat generators in the longitudinal direction of the heater. The heat transfer portion is disposed on the first side to release heat from the heating span.Type: GrantFiled: November 30, 2020Date of Patent: October 12, 2021Assignee: RICOH COMPANY, LTD.Inventor: Takayuki Seki
-
Publication number: 20210278790Abstract: A heating device (9) includes a heater (22), a holder (23), a device frame (40), a primary positioner (A), a secondary positioner (B), and a tertiary positioner (C). The heater includes a heat generator (60). The holder holds the heater. The device frame is configured to support the holder. The primary positioner is configured to position the heater and the holder in a longitudinal direction of the heater. The secondary positioner is configured to position the holder and the device frame in the longitudinal direction of the heater. The tertiary positioner is configured to position the device frame and a body of an image forming apparatus in the longitudinal direction of the heater. The primary positioner and one of the secondary positioner and the tertiary positioner are disposed on an identical side defined by a center of the heat generator in the longitudinal direction of the heater.Type: ApplicationFiled: September 17, 2019Publication date: September 9, 2021Applicant: Ricoh Company, Ltd.Inventors: Yuusuke FURUICHI, Tomoya ADACHI, Yukimichi SOMEYA, Takayuki SEKI
-
Publication number: 20210271190Abstract: An image forming apparatus includes a heating device including a rotator member, a heating member configured to heat the rotator member. The heating member is switchable between a first heat generation state in which an amount of heat generated on a first side is larger than an amount of heat generated on a second side in the intersection direction and a second heat generation state in which the amount of heat generated on the second side is larger than the amount of heat generated on the first side, The image forming apparatus is configured to switch between the first heat generation state and the second heat generation state while executing a job of continuously forming an image on a plurality of recording media having a same length in the intersecting direction.Type: ApplicationFiled: February 24, 2021Publication date: September 2, 2021Applicant: Ricoh Company, Ltd.Inventor: Takayuki SEKI
-
Patent number: 11054773Abstract: A heater includes a base layer, a heat generator mounted on the base layer, and a slide layer mounted on the base layer. A sliding face of a counterpart slides over the slide layer. The slide layer is made of a material containing fluorine and includes a slide face that contacts the sliding face of the counterpart. The slide face of the slide layer has a surface roughness that is greater than a surface roughness of the sliding face of the counterpart.Type: GrantFiled: February 7, 2020Date of Patent: July 6, 2021Assignee: Ricoh Company, Ltd.Inventors: Yuusuke Furuichi, Kenji Ishii, Kenichi Hasegawa, Takashi Fujita, Tomoya Adachi, Yukimichi Someya, Daisuke Inoue, Masahiro Samei, Takayuki Seki
-
Publication number: 20210181661Abstract: A heating device includes an endless belt, an opposed rotator, a heater, and a heat transfer portion. The opposed rotator is configured to contact the endless belt to form a nip between the endless belt and the opposed rotator. The heater includes a plurality of resistive heat generators configured to heat the endless belt. The heater is configured to generate a larger amount of heat on a first side of the heater than a second side of the heater in a longitudinal direction of the heater. The first side is opposite to the second side with respect to a center position of a heating span of all the plurality of energized resistive heat generators in the longitudinal direction of the heater. The heat transfer portion is disposed on the first side to release heat from the heating span.Type: ApplicationFiled: November 30, 2020Publication date: June 17, 2021Applicant: Ricoh Company, Ltd.Inventor: Takayuki SEKI
-
Publication number: 20210165350Abstract: A heating device includes a rotator, an opposed rotator configured to contact the rotator to form a nip, a heater configured to heat the rotator, and a plurality of pressing devices. The heater includes a first portion and a second portion. The second portion of the heater generates a larger amount of heat than the first portion of the heater. The pressing devices are arranged in a longitudinal direction of the heater and each configured to press at least one of the rotator and the opposed rotator and cause the rotator and the opposed rotator to press each other. The pressing devices include a first pressing device corresponding to the first portion of the heater and a second pressing device corresponding to the second portion of the heater, and the first pressing device generates a smaller pressing force than the second pressing device.Type: ApplicationFiled: November 3, 2020Publication date: June 3, 2021Applicant: Ricoh Company, Ltd.Inventor: Takayuki SEKI