Patents Examined by Cheukfan Lee
  • Patent number: 10097710
    Abstract: An image reading apparatus which reads an image of a document is provided with a transport unit (rollers, and the like) which transports a document, a reading unit which reads a document, a double feeding detecting sensor (double feeding detecting unit) which can detect double feeding of a document, and a carrier sheet sensor (CS sensor) (sheet detecting unit) which detects a carrier sheet which is transported in a state of interposing a document between two transparent sheet portions. The CS sensor is provided at a position on the upstream side of the double feeding detecting sensor in the transport direction, in a transport direction of a document.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: October 9, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Shinsuke Kogi
  • Patent number: 10091392
    Abstract: The present invention provides a technique capable of obtaining image data without a missing part even in a case where a business form is not rectangular. An image reading device including a reading unit which reads an image of a business form, the image reading device includes a skew angle calculation unit which calculates a skew angle used for correcting inclination of the business form according to image data of the image read by the reading unit, a circumscribed region detection unit which generates an image after a first skew correction obtained by rotating the image according to the skew angle, scans the generated image after the first skew correction, and thus detects a circumscribed quadrangle circumscribed around the image of the business form and included in the image after the first skew correction, and an image cutout unit which cuts out a business-form image after cutout from the image read by the reading unit, according to coordinates of four corner points of the circumscribed quadrangle.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: October 2, 2018
    Assignee: Hitachi Information & Telecommunication Engineering, Ltd.
    Inventors: Toyohiro Negami, Kazumi Suzuki
  • Patent number: 10091382
    Abstract: Provided is an illumination apparatus that applies light to an original, the illumination apparatus including: a light source; and a rod-shaped light guide including: an incident surface that receives the light from the light source; a reflection surface provided with a diffusion portion that diffuses the light incident on the incident surface; and an emission surface that emits, to the original, the light diffused by the diffusion portion. An area of the light guide is reduced by an inclination of the light guide from the incident surface side to a middle part in a longitudinal direction of the light guide, and the light guide is provided with the diffusion portion from the incident surface side to the middle part on the reflection surface.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: October 2, 2018
    Assignee: CANON COMPONENTS, INC.
    Inventors: Hidemasa Yoshida, Yoshihiko Tsumekawa, Akihito Takeshita
  • Patent number: 10079948
    Abstract: According to detection results of a plurality of original document detectors, an image reading apparatus determines whether or not correcting skew of an original document is possible, controls a pair of a plurality of transport rollers in a case where it is determined that correcting the skew of the original document is possible, and corrects the skew of the original document by making transporting speeds of the pair of the plurality of transport rollers different from each other.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: September 18, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takashi Naito, Hiroshi Kusuda, Takefusa Ogata, Katsuji Ichimaru, Kenji Fukuta, Terumi Tsuda
  • Patent number: 10063732
    Abstract: In a line sensor including color filters that are periodically disposed in a light-receiving-element row, a problem called a “mixture of colors” occurs. A “mixture of colors” occurs when light that has been transmitted through a color filter differing from a color filter corresponding to a light receiving element is incident upon the light receiving element. In a CMOS sensor 107 including a light-receiving-element row in which a plurality of photodiodes 1204 are disposed side by side in a main scanning direction and a plurality of color filters 1202 that are disposed in correspondence with the plurality of photodiodes 1204, the center of each color filter 1202 is displaced in a direction of the center of the light-receiving-element row from the center of the photodiode 1204 corresponding to the color filter.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: August 28, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Daisuke Akagi, Masanori Ogura, Jun Iba, Atsushi Furubayashi
  • Patent number: 10057441
    Abstract: A driving device of the present invention includes a drive wire and a drive pulley. The drive pulley has a fixing hole and a guide groove on a wire-winding surface thereof on which the drive wire is wound. The drive wire is disposed in the guide groove and fixed in a fixing hole by a fixing member. A bottom face of the guide groove has a curved face portion formed in a boundary region of the wire-winding surface and the guide groove.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: August 21, 2018
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuhiro Iguchi, Kenji Nakanishi, Shohichi Fukutome, Yasuhiro Suto, Hiroki Kuruma
  • Patent number: 10038819
    Abstract: Provided is a signal processing apparatus that enables an image reading apparatus to perform higher speed processing of reading a document image. A signal processing unit is configured to convert six analog image signals obtained from a line sensor into six first signals, each of which is a 10-bit digital image signal, respectively, and to write the six first signals into a RAM at a first speed that is the same as a frequency of the analog image signals. The signal processing unit is configured to cause a serialization unit to read out from the RAM the six first signals as four second signals, each of which is a 10-bit digital image signal, at a second speed higher than the first speed, respectively, and to serialize the four second signals to generate six 7-bit serial signals.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: July 31, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kazunori Togashi
  • Patent number: 10038811
    Abstract: An image reading device of the present invention includes a reading unit in which a lighting system and an optical system are mounted, a controller provided at a position where the controller does not transfer along with the reading unit, and a flexible flat cable that includes a curved portion and connects the reading unit with the controller. The lighting system includes an elongated light conductor extended in the main scanning direction and an end portion light source arranged at the end portion of the light conductor. The flexible flat cable is arranged on the outside of the optical system and on the lower side of the light conductor.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: July 31, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Masahiko Tanaka, Yuki Higuchi
  • Patent number: 10027831
    Abstract: An image-reading unit includes an original document conveyor that includes a first original document tray to hold an original document to be read, a first original document feeding port to feed the original document placed on the first original document tray, and an original document conveying path to convey the original document from the first original document feeding port to an original document discharging port. The original document conveyor further includes an openable second original document tray attached near an intermediate portion of the original document conveying path to hold an original document when opened, and a second original document feeding port to feed the original document on the second original document tray. The image-reading unit further includes an image reader to read an image of the original document being conveyed along the original document conveying path.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: July 17, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Takuji Kawai, Yasunobu Youda, Yohei Osanai, Tatsuaki Nagano, Satoshi Narai, Toshiyuki Horikawa, Daisuke Imaki, Takayuki Andoh, Susumu Miyazaki, Tetsuo Inui, Yuki Fujii, Koichi Ono, Takeshi Shikama, Shingo Shiramura, Hideo Tanaka
  • Patent number: 10027846
    Abstract: A light guide body (2) includes a light guide main body (21), a band region (4), and radial microstructures (5). The light guide main body (21) is columnar, and light enters the light guide main body (21) from at least one end portion (3). The band region (4) is formed extending in the lengthwise direction of a portion of a circumferential surface of the light guide main body (21). The radial microstructures (5) are arranged in the band region (4) and are formed as microstructures that each have protruding parts extending radially in at least three directions in a band region portion from a reference point.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: July 17, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Fumika Oshiyama, Taku Matsuzawa, Toru Aramaki
  • Patent number: 10027835
    Abstract: An image reading apparatus includes: a movable body configured to illuminate a document with light; and an apparatus body configured to wirelessly transmit power to the movable body, wherein the movable body includes receiver coils, and a feed circuit in which the receiver coils uses receiving power to supply power to a load, the apparatus body includes transmitter coils placed along a track of the receiver coils, the transmitter coils and the receiver coils are placed such that power supply efficiency of any receiver coil with the transmitter coil placed along the track of the receiver coil fluctuates, and power supply efficiency related to one receiver coil increases at a position where power supply efficiency related to the other receiver coil drops, and the feed circuit supplies power sequentially using the receiving power of the receiver coil whose power supply efficiency is increased to highest among the receiver coils.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: July 17, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Takeshi Ishida, Tatsuya Eguchi, Isao Watanabe, Hiroaki Takatsu, Taku Kimura, Atomu Nakashima
  • Patent number: 10015335
    Abstract: A medium transport device includes a feeding roller which sends a medium to a downstream side; and a detecting unit which can detect the medium sent by the feeding roller at a predetermined position on a transport path, in which the detecting unit includes a lever member of which a posture is changed when being in contact with the medium, and a detecting portion which detects a change in posture of the lever member, and the lever member applies an external force which causes at least a part of the medium to be bent in a gravity direction by being in contact with the medium in a predetermined posture.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: July 3, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Ryoichi Shuto
  • Patent number: 10009555
    Abstract: An image sensor unit includes a light emitting element, a light guide that has a substantially rod-like shape and shapes light emitted by the light emitting element into a line, a light condenser that focuses light from an illuminated object, an image sensor that detects the light focused by the light condenser, and a frame in which a light guide housing chamber that houses the light guide and an image sensor housing chamber that houses the image sensor are formed. A correction optical path that extends from the light guide to the image sensor without passing through the light condenser is formed in the frame.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: June 26, 2018
    Assignee: CANON COMPONENTS, INC.
    Inventor: Shuuichi Shimoda
  • Patent number: 9992365
    Abstract: Certain embodiments provide a document detecting device, including: a plate having an upper surface on which a document is placed; an imaging device that includes the upper surface in a photographing visual field range; and a controller that detects any one or more of a position, an angle, and a size of the document on the upper surface according to an image by the imaging device and fixed-size information of the document stored in advance.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: June 5, 2018
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Satoshi Hasegawa
  • Patent number: 9992370
    Abstract: A double-sided image reading device that reads an image on a first side of a document when the document that is being delivered through a feeding path passes a first reading part and thereafter reads an image on a second side of the document opposite to the first side when the document passes a second reading part, the double-sided image reading device including: an S-shaped path provided between the first reading part and the second reading part of the feeding path and including a lower end of a first curved path in a document feeding direction and an upper end of a second curved path curved to the side opposite to the first curved path in the document feeding direction connected to each other; and a pressing guide configured to press the document that is being delivered through the first curved path.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: June 5, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventor: Toshimitsu Morioka
  • Patent number: 9973659
    Abstract: An imaging element includes: a plurality of pixel units configured to each include a plurality of light receiving elements performing photoelectric conversion; a plurality of analog-to-digital (A/D) converters configured to be provided to each of the pixel units for sequentially converting an analog signal obtained by photoelectric conversion performed by the light receiving elements to a digital signal; a plurality of first holding units configured to be provided to each of the pixel units for sequentially holding a digital signal obtained by conversion performed by the A/D converters; and a plurality of second holding units configured to receive and hold a digital signal held by the first holding units in a period when the A/D converters do not convert an analog signal to a digital signal.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: May 15, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshio Konno, Masamoto Nakazawa, Hiroki Shirado
  • Patent number: 9955031
    Abstract: A laser scanning device includes light source, deflection portion, image forming lens, a block position setting portion, and a light source control portion. The image forming lens condenses a light beam deflected by the deflection portion on a scanned surface, and causes the light beam to be scanned on the scanned surface in a scanning direction at an equal speed. The block position setting portion sets one or more block areas which each include a plurality of section areas sectioned from each other on the scanned surface in the scanning direction. The light source control portion controls the light source to irradiate the light beam to the plurality of section areas at a plurality of irradiation timings that are determined for each of the block areas. The block position setting portion shifts set positions of the block areas along the scanning direction for each scan of at least one line.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: April 24, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Hideki Ishida, Yuji Toyota
  • Patent number: 9946009
    Abstract: A light guide includes a first exit portion emitting first exiting light, a second exit portion emitting second exiting light in a different direction than the first exiting light, and a reflecting portion reflecting light entering the light guide to each of the first and second exit portions. The first and second exit portions respectively have first and second curved surfaces each having a convex cross section perpendicular to the long axis direction. The second exit portion is connected to the first exit portion in the direction perpendicular to the long axis direction. The reflecting portion is provided, in a plane facing the first exit portion and the second exit portion, at a position shifted in the direction perpendicular to the long axis direction from a position where a normal to the plane passes through a connection portion between the first and second exit portions.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: April 17, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Akiko Fujiuchi, Hironobu Arimoto, Taku Matsuzawa
  • Patent number: 9948800
    Abstract: An image scanner includes an image sensor with a plurality of scanning elements arrayed in a main scanning direction, a carriage carrying thereon the image sensor, a pair of pulleys, a belt looped around the pulleys, a connector, and a restricting member. The connector protrudes from the carriage and is connected to the belt which is inserted in an entry port of the connector. When the belt is driven to rotate, the connector moves with the belt and moves the carriage in a sub-scanning direction. The restricting member contacts the belt when, in a state where the carriage is at a standby position, the belt shifts in a disengaging direction in which the belt tends to disengage from the connector through the entry port.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: April 17, 2018
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Hiroaki Shigeno
  • Patent number: 9948799
    Abstract: An image reading apparatus includes a medium reading unit that extends in a main scanning direction and reads an image of a medium while moving in a sub-scanning direction which is a direction crossing the main scanning direction; a signal transmission cable that is a flexible cable having a curved section and connected to the medium reading unit and that deforms following a movement of the medium reading unit; a power supply that supplies power to the medium reading unit; and a housing that accommodates the medium reading unit and the power supply. At least a portion of an insertion/extraction space for inserting/extracting a plug of a power cable from outside the housing to the power supply and at least a portion of an area where the signal transmission cable deforms following the movement of the medium reading unit overlap in a height direction of the medium reading unit.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: April 17, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Kohei Kozaki, Kensuke Tamai