Patents by Inventor Masahiko Miyamoto
Masahiko Miyamoto 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).
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Patent number: 11933715Abstract: A test sample of a vulcanized rubber material is placed under a preset placement condition in a fixing frame in a test tank having a predetermined ozone concentration, and digital image data is acquired by capturing at a fixed point, over time, with at least one camera device, images of a surface of the test sample that has been placed in the test tank; and determining a change in a surface state of the test sample between a plurality of points in time by analyzing, with a computation device, the image data that has been acquired. Such evaluation method for evaluating ozone deterioration of a vulcanized rubber material can accurately determine a change over time in ozone deterioration while reducing working man-hours.Type: GrantFiled: November 29, 2019Date of Patent: March 19, 2024Assignee: The Yokohama Rubber Co., Ltd.Inventors: Gang Hou, Taro Takahashi, Masahiko Miyamoto, Naoto Ishii
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Patent number: 11332313Abstract: A conveyor belt monitoring system includes an imaging device which sequentially images a longitudinal predetermined range of a conveyor belt in running from above the conveyor belt. Image data captured by the imaging device is displayed in a monitor, and then is sequentially input into a control unit as detection data. The control unit causes a meander suppressing device to reduce a meander width of the conveyor belt on the basis of the image data.Type: GrantFiled: November 24, 2017Date of Patent: May 17, 2022Assignee: The Yokohama Rubber Co., LTD.Inventors: Gang Hou, Masahiko Miyamoto, Taro Takahashi, Masaharu Manishi, Eiji Kobayashi, Hitoshi Indo
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Publication number: 20220091021Abstract: A test sample of a vulcanized rubber material is placed under a preset placement condition in a fixing frame in a test tank having a predetermined ozone concentration, and digital image data is acquired by capturing at a fixed point, over time, with at least one camera device, images of a surface of the test sample that has been placed in the test tank; and determining a change in a surface state of the test sample between a plurality of points in time by analyzing, with a computation device, the image data that has been acquired. Such evaluation method for evaluating ozone deterioration of a vulcanized rubber material can accurately determine a change over time in ozone deterioration while reducing working man-hours.Type: ApplicationFiled: November 29, 2019Publication date: March 24, 2022Inventors: Gang HOU, Taro TAKAHASHI, Masahiko MIYAMOTO, Naoto ISHII
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Patent number: 11053648Abstract: A pneumatic fender monitoring system is provided. Image data captured by using at least one of a front view imaging device that successively images an external shape in a front view of a pneumatic fender used disposed between a vessel and a vessel or a side view imaging device that successively images the external shape in a side view of the pneumatic fender is successively input into a control unit and successively displayed on a monitor, and the control unit determines, on the basis of the image data, whether an amount of deformation of the external shape of the pneumatic fender is within a preset tolerance range or outside of a preset tolerance range.Type: GrantFiled: November 24, 2017Date of Patent: July 6, 2021Inventors: Gang Hou, Masahiko Miyamoto, Taro Takahashi, Masaharu Manishi, Koko Tsuchiya
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Patent number: 10865052Abstract: Surface image data relating to an upper cover rubber is continuously and successively captured by a surface camera device and input to a computation device. Each piece of surface image data is stored in a database in association with data on the circumferential position of that surface image data on a conveyor belt and data on the time at which that surface image data was captured. An input unit is used to display any piece of surface image data on a monitor, register surface image data in which a predetermined defect is present on the surface of the upper cover rubber in the database as data to be monitored, and automatically register in the database surface image data having the same circumferential position data as the data to be monitored as related data to be monitored. Such monitoring system determines the state of damage of a cover rubber surface.Type: GrantFiled: June 26, 2018Date of Patent: December 15, 2020Assignee: The Yokohama Rubber Co., Ltd.Inventors: Gang Hou, Masahiko Miyamoto, Taro Takahashi, Kazuya Kanno
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Publication number: 20200189854Abstract: Surface image data relating to an upper cover rubber is continuously and successively captured by a surface camera device and input to a computation device. Each piece of surface image data is stored in a database in association with data on the circumferential position of that surface image data on a conveyor belt and data on the time at which that surface image data was captured. An input unit is used to display any piece of surface image data on a monitor, register surface image data in which a predetermined defect is present on the surface of the upper cover rubber in the database as data to be monitored, and automatically register in the database surface image data having the same circumferential position data as the data to be monitored as related data to be monitored. Such monitoring system determines the state of damage of a cover rubber surface.Type: ApplicationFiled: June 26, 2018Publication date: June 18, 2020Inventors: Gang HOU, Masahiko MIYAMOTO, Taro TAKAHASHI, Kazuya KANNO
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Publication number: 20190352097Abstract: A conveyor belt monitoring system includes an imaging device which sequentially images a longitudinal predetermined range of a conveyor belt in running from above the conveyor belt. Image data captured by the imaging device is displayed in a monitor, and then is sequentially input into a control unit as detection data. The control unit causes a meander suppressing device to reduce a meander width of the conveyor belt on the basis of the image data.Type: ApplicationFiled: November 24, 2017Publication date: November 21, 2019Inventors: Gang Hou, Masahiko Miyamoto, Taro Takahashi, Masaharu Manishi, Eiji Kobayashi, Hitoshi Indo
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Publication number: 20190352871Abstract: A pneumatic fender monitoring system is provided. Image data captured by using at least one of a front view imaging device that successively images an external shape in a front view of a pneumatic fender used disposed between a vessel and a vessel or a side view imaging device that successively images the external shape in a side view of the pneumatic fender is successively input into a control unit and successively displayed on a monitor, and the control unit determines, on the basis of the image data, whether an amount of deformation of the external shape of the pneumatic fender is within a preset tolerance range or outside of a preset tolerance range.Type: ApplicationFiled: November 24, 2017Publication date: November 21, 2019Inventors: Gang Hou, Masahiko Miyamoto, Taro Takahashi, Masaharu Manishi, Koko Tsuchiya
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Patent number: 10409179Abstract: An electrophotographic photoreceptor includes a conductive support, a charge generation layer disposed on the conductive support, and a charge transport layer disposed on the charge generation layer. The charge generation layer includes a charge generating material and a vinyl copolymer. The vinyl copolymer includes a structural unit including a chlorine atom, a structural unit including an acyloxy group, and a structural unit including two or more carboxyl groups. The proportion of the structural unit including an acyloxy group to all of the structural units is 13.4 mol % or more and 20.0 mol % or less. The charge transport layer includes a charge transporting material and a binder resin.Type: GrantFiled: August 3, 2018Date of Patent: September 10, 2019Assignee: FUJI XEROX CO., LTD.Inventors: Masahiko Miyamoto, Hideya Katsuhara, Takeshi Iwanaga
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Patent number: 10185236Abstract: An image forming apparatus includes an electrophotographic photoreceptor having a photosensitive layer that includes at least one of a hindered phenol antioxidant and a benzophenone ultraviolet absorber, a charging device, an electrostatic latent image forming device, a developing device, and a transfer device that includes an intermediate transfer belt whose electric field dependence of a volume resistivity is 0.003 or less (log ?·cm)/V in a voltage range of from 500 V to 1,000 V, and transfers a toner image formed on a surface of the electrophotographic photoreceptor onto a recording medium through the intermediate transfer belt and erases charges from the surface of the electrophotographic photoreceptor by applying current to the electrophotographic photoreceptor after the toner image formed on the surface of the electrophotographic photoreceptor has been transferred onto the intermediate transfer belt.Type: GrantFiled: August 23, 2016Date of Patent: January 22, 2019Assignee: FUJI XEROX CO., LTD.Inventors: Satoya Sugiura, Shigeru Fukuda, Hideki Okamoto, Masahiko Miyamoto
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Patent number: 10095133Abstract: An electrophotographic photoreceptor includes a conductive support in which (i) a recessed portion having an opening diameter of greater than 400 ?m and (ii) a recessed portion having an opening diameter of from 100 ?m to 400 ?m and a ratio of a depth to an opening diameter of greater than 0.12 are not present on an outer peripheral surface, wherein even in a case where a first recessed portion having an opening diameter of from 100 ?m to 400 ?m and a ratio of a depth to an opening diameter of 0.12 or less is present on the outer peripheral surface of the conductive support and a second recessed portion on which the first recessed portion is reflected is present on the outer peripheral surface of an outermost layer, a ratio of a depth to an opening diameter of the second recessed portion is not greater than 0.030.Type: GrantFiled: November 4, 2016Date of Patent: October 9, 2018Assignee: FUJI XEROX CO., LTD.Inventors: Daisuke Haruyama, Masahiko Miyamoto
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Patent number: 10036969Abstract: An electrophotographic photoreceptor includes a conductive substrate satisfying a condition (A); an undercoat layer satisfying conditions (B) and (C), disposed on the conductive substrate, and containing metal oxide particles; and a photosensitive layer disposed on the undercoat layer: condition (A): in the case where depressions existing in the surface of the conductive substrate are observed with a laser microscope, the width of the largest depression is 400 ?m or less, and the depth of the depression is 15 ?m or less; condition (B): in the case where the undercoat layer is subjected to a Cole-Cole plot analysis, an angular frequency ?max at which a complex impedance component is maximum is from 2.0 rad to 25.0 rad; and condition (C): volume resistivity obtained from the Cole-Cole plot analysis of the undercoat layer is from 7.0×107? to 1.0×109?.Type: GrantFiled: March 2, 2017Date of Patent: July 31, 2018Assignee: FUJI XEROX CO., LTD.Inventors: Masahiko Miyamoto, Daisuke Haruyama, Shigeto Hashiba
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Publication number: 20180031984Abstract: An electrophotographic photoreceptor includes a conductive substrate satisfying a condition (A); an undercoat layer satisfying conditions (B) and (C), disposed on the conductive substrate, and containing metal oxide particles; and a photosensitive layer disposed on the undercoat layer: condition (A): in the case where depressions existing in the surface of the conductive substrate are observed with a laser microscope, the width of the largest depression is 400 ?m or less, and the depth of the depression is 15 ?m or less; condition (B): in the case where the undercoat layer is subjected to a Cole-Cole plot analysis, an angular frequency ?max at which a complex impedance component is maximum is from 2.0 rad to 25.0 rad; and condition (C): volume resistivity obtained from the Cole-Cole plot analysis of the undercoat layer is from 7.0×107? to 1.0×109?.Type: ApplicationFiled: March 2, 2017Publication date: February 1, 2018Applicant: FUJI XEROX CO., LTD.Inventors: Masahiko MIYAMOTO, Daisuke HARUYAMA, Shigeto HASHIBA
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Publication number: 20170357167Abstract: An electrophotographic photoreceptor includes a conductive support in which (i) a recessed portion having an opening diameter of greater than 400 ?m and (ii) a recessed portion having an opening diameter of from 100 ?m to 400 ?m and a ratio of a depth to an opening diameter of greater than 0.12 are not present on an outer peripheral surface, wherein even in a case where a first recessed portion having an opening diameter of from 100 ?m to 400 ?m and a ratio of a depth to an opening diameter of 0.12 or less is present on the outer peripheral surface of the conductive support and a second recessed portion on which the first recessed portion is reflected is present on the outer peripheral surface of an outermost layer, a ratio of a depth to an opening diameter of the second recessed portion is not greater than 0.030.Type: ApplicationFiled: November 4, 2016Publication date: December 14, 2017Applicant: FUJI XEROX CO., LTD.Inventors: Daisuke HARUYAMA, Masahiko MIYAMOTO
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Publication number: 20170277047Abstract: An image forming apparatus includes an electrophotographic photoreceptor having a photosensitive layer that includes at least one of a hindered phenol antioxidant and a benzophenone ultraviolet absorber, a charging device, an electrostatic latent image forming device, a developing device, and a transfer device that includes an intermediate transfer belt whose electric field dependence of a volume resistivity is 0.003 or less (log ?·cm)/V in a voltage range of from 500 V to 1,000 V, and transfers a toner image formed on a surface of the electrophotographic photoreceptor onto a recording medium through the intermediate transfer belt and erases charges from the surface of the electrophotographic photoreceptor by applying current to the electrophotographic photoreceptor after the toner image formed on the surface of the electrophotographic photoreceptor has been transferred onto the intermediate transfer belt.Type: ApplicationFiled: August 23, 2016Publication date: September 28, 2017Applicant: FUJI XEROX CO., LTD.Inventors: Satoya SUGIURA, Shigeru FUKUDA, Hideki OKAMOTO, Masahiko MIYAMOTO
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Publication number: 20170255113Abstract: An image forming apparatus includes an electrophotographic photoreceptor that includes a photosensitive layer that contains a charge generation material, a charge transport material, and a binder resin; a charging unit; an electrostatic latent image forming unit; a developing unit; and a transfer unit.Type: ApplicationFiled: August 8, 2016Publication date: September 7, 2017Applicant: FUJI XEROX CO., LTD.Inventors: Masahiko MIYAMOTO, Shigeto HASHIBA
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Patent number: 9651880Abstract: An electrophotographic photoreceptor includes a conductive substrate, an undercoat layer provided on the conductive substrate and including metal oxide particles, and a photosensitive layer provided on the undercoat layer, wherein, at the time of performing Cole-Cole plot analysis with respect to the undercoat layer, an angular frequency ?max, at which a maximum complex impedance component is obtained, falls within a range of 2 (rad)??max?10 (rad).Type: GrantFiled: August 25, 2015Date of Patent: May 16, 2017Assignee: FUJI XEROX CO., LTD.Inventor: Masahiko Miyamoto
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Patent number: 9422040Abstract: A computer 11 of a ship monitoring device 1 arranges one kind of transmission data between two consecutive start control codes and two consecutive termination control codes. The computer 11 also arranges information indicating a type of the transmission data between the transmission data and the start control codes and between the termination control codes and the transmission data. In this way, the transmission data is transmitted in form of packet data. Therefore, transmission data in information communication between ships and sensed information in information communication of fenders can be easily distinguished from each other. In addition, a type of information transmitted as the transmission data can be easily identified.Type: GrantFiled: July 22, 2013Date of Patent: August 23, 2016Assignee: THE YOKOHAMA RUBBER CO., LTD.Inventors: Kazunori Ono, Masahiko Miyamoto, Koji Nakatani, Shu Yamada, Shigeki Sakakibara, Minami Izumi, Michito Kaneko
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Publication number: 20160231657Abstract: According to an exemplary embodiment of the present invention, there is provided an electrophotographic photoreceptor having a conductive substrate, and a photosensitive layer arranged on the conductive substrate, wherein the photosensitive layer contains a charge-generating material, a charge-transporting material having a specific structure, a charge-transporting material having another specific structure, and at least one selected from a group consisting of a hindered phenol antioxidant having a molecular weight of 300 or more and a benzophenone UV absorbent.Type: ApplicationFiled: August 6, 2015Publication date: August 11, 2016Applicant: FUJI XEROX CO., LTD.Inventors: Masahiko MIYAMOTO, Shigeto HASHIBA
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Publication number: 20160216621Abstract: An electrophotographic photoreceptor includes a conductive substrate, an undercoat layer provided on the conductive substrate and including metal oxide particles, and a photosensitive layer provided on the undercoat layer, wherein, at the time of performing Cole-Cole plot analysis with respect to the undercoat layer, an angular frequency ?max, at which a maximum complex impedance component is obtained, falls within a range of 2 (rad)??max?10 (rad).Type: ApplicationFiled: August 25, 2015Publication date: July 28, 2016Inventor: Masahiko MIYAMOTO