Patents by Inventor Manabu Nonaka

Manabu Nonaka 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: 10968061
    Abstract: An image forming apparatus includes a sheet container accommodating a recording medium therein, a sheet separating feeder including a sheet feeding body and a sheet separating body, an image forming part, and a bend applier. The sheet feeding body feeds the recording medium along with a surface movement thereof while the recording medium contacting the surface thereof. The sheet separating body forms a sheet separation nip region with the sheet feeding body and sandwiches the recording medium in the sheet separation nip region. The sheet separating feeder separates and feeds the recording medium contacting the sheet feeding body. The image forming part forms an image on the recording medium. The bend applier having a leading end of an elastic material contacts and bends the recording medium before the sheet separation nip region and generates a wrinkle extending on the recording medium in a sheet conveying direction.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: April 6, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Jumpei Aoyama, Manabu Nonaka, Hajime Nishida, Hideki Tobinaga, Junpei Kamichi, Satoshi Kuno, Shun Kobayashi
  • Publication number: 20210042945
    Abstract: An objective of the present invention is, in a stereo camera device, to determine an accurate image position in a direction of progress to detect at an early stage an obstacle or a preceding vehicle on a road. Provided is a stereo camera device for measuring the distance to a solid object from images photographed with a plurality of cameras, said device characterized by: a wide-angle image cropping part for cropping a portion of the images; a distance image cropping part for cropping and enlarging a portion of the images; a road shape determination part for determining a road shape, including slope information, of a road being traveled; and determining, on the basis of the road shape in a prescribed distance, which has been derived with the road shape determination part, the cropping position and/or range of the distance image cropping part.
    Type: Application
    Filed: January 31, 2019
    Publication date: February 11, 2021
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Shigeru MATSUO, Manabu SASAMOTO, Shinichi NONAKA
  • Publication number: 20200340492
    Abstract: A vacuum pump includes a rotor that has a rotor central portion and a plurality of stages of rotor blade portions extending from the rotor central portion and having a predetermined elevation angle, and a casing that houses the rotor therein. The rotor further includes a rotor fin. The rotor fin includes a fin shaft portion connected to an end of the rotor central portion, and a transfer blade that extends from the fin shaft portion and causes particles to bounce back in a direction toward an outer periphery of the rotor, the particles falling onto the abovementioned end through an inlet port. The height of the transfer blade and the number of transfer blades are set based on the fall velocity of the particles and the rotation speed of the rotor, such that the particles are prevented from falling onto the abovementioned end without colliding with the transfer blade.
    Type: Application
    Filed: October 12, 2018
    Publication date: October 29, 2020
    Inventors: Manabu Nonaka, Toshiki Yamaguchi
  • Publication number: 20200332811
    Abstract: To provide a vacuum pump suited for removal of a product deposited in a flow path of the vacuum pump, and a stator component, discharge port, and control means that are used in the vacuum pump. A vacuum pump includes a flow path through which a gas is transferred from an inlet port toward an outlet port and removing means that removes a product deposited on an inner wall surface of the flow path. The removing means has injection holes with one ends opened at the inner wall surface of the flow path and injects the removing gas into the flow path through the injection holes.
    Type: Application
    Filed: December 25, 2018
    Publication date: October 22, 2020
    Inventors: Kazushi Yamamoto, Manabu Nonaka, Yoshiyuki Sakaguchi, Takashi Kabasawa
  • Publication number: 20200284580
    Abstract: The purpose of the present invention is to provide an imaging device whereby enhanced sensing precision and reduced computational load can both be achieved at the same time even when a plurality of objects as sensing subjects are present. In order to achieve this purpose, the present invention has: a first object detection processing unit having a plurality of imaging units, the first object detection processing unit performing first object detection processing for sensing, by stereo processing, a distance for each of a plurality of image elements in partial region of interest in an image acquired by the imaging units, then extracting a group of the image elements on the basis of the sensed distances and detecting an object; and a second object detection processing unit for performing second object detection processing for detecting the distance of the object by stereo processing for a partial region of another region of interest in the image.
    Type: Application
    Filed: January 10, 2017
    Publication date: September 10, 2020
    Inventors: Manabu SASAMOTO, Takeshi SHIMA, Shinichi NONAKA
  • Publication number: 20200271132
    Abstract: A vacuum pump includes a plurality of exhaust stages provided between an inlet port and an exhaust port so as to function as means for exhausting gas molecules, and a number of blades provided between the inlet port and an uppermost exhaust stage of the plurality of exhaust stages so as to rotate together with a rotary blade that constitutes the uppermost exhaust stage as a particle transport stage for transporting particles in an exhaust direction of the gas molecules, the number being smaller than the number of rotary blades that constitutes the uppermost exhaust stage.
    Type: Application
    Filed: March 19, 2018
    Publication date: August 27, 2020
    Inventors: Manabu Nonaka, Hideki Enosawa
  • Patent number: 10662957
    Abstract: A vacuum pump has, in at least either a stator disc to be disposed or a rotating disc to be disposed, a Siegbahn type molecular pump portion in which a spiral-shaped groove with a ridge portion and a root portion is engraved (disposed), and is structured to ensure high conductance at a returning flow channel formed at the outer periphery (outside) of the Siegbahn type molecular pump portion. This structure is created by a communicating portion (a groove portion, a slit) formed on each rotating disc, or an oblique plate disposed on the stator disc and the communicating portion formed on the rotating disc. The “communicating portion,” “groove portion,” and “slit” are configured to have “concave” shapes, a concave portion is provided by engraving a groove radially inward from an outer diameter portion (toward a side of a shaft of the vacuum pump) in the rotating disc (or stator disc).
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: May 26, 2020
    Assignee: Edwards Japan Limited
    Inventors: Manabu Nonaka, Takashi Kabasawa
  • Publication number: 20200109458
    Abstract: A cold-rolled steel according to the present invention has a predetermined chemical composition, satisfies (5×[Si]+[Mn])/[C]>10 when [C] is the amount of C by mass %, [Si] is the amount of Si by mass %, and [Mn] is the amount of Mn by mass %, includes 40% to 95% ferrite and 5% to 60% martensite in area fraction, and optionally further includes 10% or less pearlite in area fraction, 5% or less retained austenite in volume fraction, and less than 40% bainite in area fraction. The total of the area fraction of ferrite and the area fraction of martensite is 60% or more, the hardness of martensite measured with a nanoindenter satisfies H2/H1<1.10 and ?HM<20.
    Type: Application
    Filed: December 6, 2019
    Publication date: April 9, 2020
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Yoshihiro SUWA, Toshiki NONAKA, Koichi SATO, Manabu NARUSE, Yasunori IWASA, Yoshifumi KOBAYASHI
  • Patent number: 10578158
    Abstract: Provided are a vacuum pump and a method for the vacuum pump in which, when contact between a rotating body and a stator is sensed, the cause of the contact can be analyzed. Contact determination is made using a threshold for rotating body contact determination for a displacement signal and a threshold for rotating body contact determination for an acceleration signal. The amount of unbalance of a rotating body is determined using a threshold for amount-of-unbalance increase determination for the displacement signal and a threshold for amount-of-unbalance increase determination for the acceleration signal. When, in one of the displacement signal and the acceleration signal, the threshold for amount-of-unbalance increase determination or the threshold for amount-of-unbalance increase determination is exceeded within a predetermined time before determination of an estimated time point of contact, the contact is determined not to be caused by an increase in accumulation of products.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: March 3, 2020
    Assignee: Edwards Japan Limited
    Inventors: Yoshinobu Ohtachi, Yasushi Maejima, Tsutomu Takaada, Manabu Nonaka
  • Patent number: 10544475
    Abstract: A hot-stamped steel according to the present invention has a predetermined chemical composition, satisfies (5×[Si]+[Mn])/[C]>10 when [C] is the amount of C by mass %, [Si] is the amount of Si by mass %, and [Mn] is the amount of Mn by mass %, includes 40% to 95% ferrite and 5% to 60% martensite in area fraction, and optionally further includes 10% or less pearlite in area fraction, 5% or less retained austenite in volume fraction, and less than 40% bainite in area fraction. The total of the area fraction of ferrite and the area fraction of martensite is 60% or more, the hardness of martensite measured with a nanoindenter satisfies H2/H1<1.10 and ?HM<20, and TS×? which is product of tensile strength TS and hole expansion ratio ? is 50000 MPa·% or more.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: January 28, 2020
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Yoshihiro Suwa, Toshiki Nonaka, Koichi Sato, Manabu Naruse, Yasunori Iwasa, Yoshifumi Kobayashi
  • Patent number: 10364814
    Abstract: An object is to reduce an adhesion amount of a product in a vacuum pump as a whole and effectively prevent occurrence of a trouble in a vacuum pump electric system due to a magnetic flux leak. A vacuum pump includes a rotor enclosed in a pump case, a rotating shaft fixed to the rotor, a supporting means that rotatably supports the rotating shaft, a driving means that rotates the rotating shaft, and thread-groove-exhaust-portion stators that form thread grove exhaust passages between the thread-groove-exhaust-portion stator and an outer circumferential side of or an inner circumferential side of the rotor. A heating portion is provided below the thread-groove-exhaust-portion stators. The heating portion includes a yoke, a coil, and a heating plate. The heating portion heats the yoke and the heating plate with electromagnetic induction heating by feeding an alternating current to the coil.
    Type: Grant
    Filed: December 25, 2013
    Date of Patent: July 30, 2019
    Assignee: Edwards Japan Limited
    Inventors: Yongwei Shi, Manabu Nonaka, Yoshinobu Ohtachi, Yasushi Maejima, Tsutomu Takaada
  • Publication number: 20190145768
    Abstract: The purpose of the present invention is to provide an imaging device capable of both improving object detection accuracy and reducing calculation load. The present invention comprises: a plurality of imaging units; an object information acquisition unit that obtains object information including distance information for objects; a search conditions setting unit that sets conditions for searching for image elements corresponding to specific image elements inside a standard image captured by one of the plurality of imaging units, same being searched for inside a reference image captured by another imaging unit; and a stereo distance detection unit that performs said search on the basis of conditions set by the search conditions setting unit and detects the object distance on the basis of parallax obtained by the search. The search conditions setting unit sets the search range for searches, on the basis of the detection information for the object.
    Type: Application
    Filed: May 31, 2017
    Publication date: May 16, 2019
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Manabu SASAMOTO, Shinichi NONAKA
  • Patent number: 10280937
    Abstract: A vacuum pump component includes a stationary disk that is formed with a spiral groove (helical groove) having a ridge portion and a valley part and has a projecting (protruding) portion on both or either one of an inner-diameter portion of the disk which faces a rotary cylinder (rotator cylinder-shaped portion) and an inner-diameter side of a stationary cylinder disposed on an outer peripheral side of the stationary disk. A second vacuum pump component includes rotary disk formed with a spiral groove having a ridge portion and a valley part and having a projecting (protruding) portion on both or either one of an outer-diameter portion of a rotary cylinder disposed on an inner peripheral side of the rotary disk and an outer-diameter portion of the rotary disk which faces a spacer.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: May 7, 2019
    Assignee: Edwards Japan Limited
    Inventors: Manabu Nonaka, Takashi Kabasawa
  • Publication number: 20190120236
    Abstract: An exhausting system capable of preventing gas condensation and early overheat in a vacuum pump without causing an increase in the costs of the entire exhausting system and suitable for relaxing the operable conditions of the entire exhausting system including a flow rate at which gas is successively exhausted. An exhausting system is predicated on a constitution including: at least a first vacuum pump and a second vacuum pump connected in series; and a connecting portion disposed therebetween, the exhausting system exhausting gas containing a condensable gas via the vacuum pumps and the connecting portion. In the exhausting system, an environment inside the connecting portion is set to an environment having a vapor phase region below a vapor pressure curve of the condensable gas flowing through an inside of the connecting portion by providing the second vacuum pump near the first vacuum pump.
    Type: Application
    Filed: July 1, 2016
    Publication date: April 25, 2019
    Inventors: Takashi Kabasawa, Manabu Nonaka
  • Patent number: 10267321
    Abstract: A stator disk includes a connection hole for improving exhaust efficiency in a vacuum pump including a Seigbahn type molecular pump portion, and a vacuum pump including the stator disk. The vacuum pump according to an embodiment includes a Seigbahn type molecular pump portion and includes, in a stator disk disposed therein, a connection hole that connects an upper space (an inlet port side region, an upstream side region) with a lower space (an outlet port side region, a downstream side region) in the axial direction of the stator disk.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: April 23, 2019
    Assignee: Edwards Japan Limited
    Inventors: Manabu Nonaka, Takashi Kabasawa
  • Patent number: 10202250
    Abstract: An image forming apparatus includes a sheet container accommodating a recording medium therein, a sheet separating feeder including a sheet feeding body and a sheet separating body, an image forming part, and a bend applier. The sheet feeding body feeds the recording medium along with a surface movement thereof while the recording medium contacting the surface thereof. The sheet separating body forms a sheet separation nip region with the sheet feeding body and sandwiches the recording medium in the sheet separation nip region. The sheet separating feeder separates and feeds the recording medium contacting the sheet feeding body. The image forming part forms an image on the recording medium. The bend applier having a leading end of an elastic material contacts and bends the recording medium before the sheet separation nip region and generates a wrinkle extending on the recording medium in a sheet conveying direction.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: February 12, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Jumpei Aoyama, Manabu Nonaka, Hajime Nishida, Hideki Tobinaga, Junpei Kamichi, Satoshi Kuno, Shun Kobayashi
  • Publication number: 20190039842
    Abstract: An image forming apparatus includes a sheet container accommodating a recording medium therein, a sheet separating feeder including a sheet feeding body and a sheet separating body, an image forming part, and a bend applier. The sheet feeding body feeds the recording medium along with a surface movement thereof while the recording medium contacting the surface thereof. The sheet separating body forms a sheet separation nip region with the sheet feeding body and sandwiches the recording medium in the sheet separation nip region. The sheet separating feeder separates and feeds the recording medium contacting the sheet feeding body. The image forming part forms an image on the recording medium. The bend applier having a leading end of an elastic material contacts and bends the recording medium before the sheet separation nip region and generates a wrinkle extending on the recording medium in a sheet conveying direction.
    Type: Application
    Filed: October 11, 2018
    Publication date: February 7, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Jumpei AOYAMA, Manabu NONAKA, Hajime NISHIDA, Hideki TOBINAGA, Junpei KAMICHI, Satoshi KUNO, Shun KOBAYASHI
  • Patent number: 10167148
    Abstract: An image forming apparatus includes an image forming unit, a paper loading base on which manual-feed paper is loaded, a manual-feed paper conveying unit, and a dustproof cover which covers the paper loading base being in the overhang state. The paper loading base has a lower end rotatably supported on one outer surface portion of the device main body, and is opened from an upper end thereof and disposed at a predetermined oblique angle or in a horizontal overhang state such that an overhang side becomes an upper side in an oblique direction. The manual-feed paper conveying unit is conveys the manual-feed paper on the paper loading base onto a paper conveyance path one by one. The dustproof cover includes a base which engages with the paper loading base, and an opening-and-closing cover which is rotatably connected to the base and is opened upwardly on the overhang side.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: January 1, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Satoshi Kuno, Hajime Nishida, Hideki Tobinaga, Jumpei Aoyama, Junpei Kamichi, Shun Kobayashi, Manabu Nonaka
  • Patent number: 10124970
    Abstract: A sheet feeder, which is incorporated in an image forming apparatus, includes an endless attraction belt that is rotatably disposed facing a top surface of a sheet stack, a belt charger to attract an uppermost sheet of the sheet stack, and a sheet separator to press the attraction belt against the sheet stack, bend a contact region to which the uppermost sheet is attracted and contacted to the attraction belt, and separate the uppermost sheet from a subsequent sheet or other sheet of the sheet stack. In this configuration, a curvature of a contact surface of the sheet separator with respect to the attraction belt is changeable.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: November 13, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshikuni Ishikawa, Tetsutaro Yasuda, Manabu Nonaka
  • Patent number: 10008892
    Abstract: An IPM motor for a vacuum pump suitable for use as a motor for a small vacuum pump is provided. The IPM motor for a vacuum pump includes: a rotor core in which a rotor shaft of the vacuum pump is pressed and which also has magnets embedded therein; and a stator core which surrounds the rotor core and around which stator windings are wound. The magnets per pole embedded in the rotor core are each split into two pieces and inserted in respective magnet slots in the rotor core. A hole for stress concentration relaxation is provided at either end of each pair of magnet slots in which permanent magnets split into two pieces are embedded in each pole. The rotor core has a multilayer structure having a plurality of rotor core laminations stacked vertically in an axial direction of the rotor shaft. The rotor core laminations stacked vertically are positioned with a skew angle determined by using the holes for stress concentration relaxation.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: June 26, 2018
    Assignee: Edwards Japan Limited
    Inventors: Isao Nakagawa, Manabu Nonaka