Patents by Inventor Hiroaki Sakai

Hiroaki Sakai 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: 20160023468
    Abstract: An ink tank includes: a reservoir that stores ink; a supply port that supplies ink stored in the reservoir to a printer; a supply port sealing member that seals the supply port; an air port that communicates between an inside of the reservoir and an atmospheric space above an upper side of a liquid surface of the ink; and an air port sealing member which a needle tube is capable of inserting and pulling out of, and which seals the air port in a state where the needle tube is not inserted.
    Type: Application
    Filed: July 23, 2015
    Publication date: January 28, 2016
    Inventors: Yoshiyuki TANAKA, Hiroaki Sakai
  • Patent number: 9242480
    Abstract: A printer includes a light source module including an ejecting head that ejects a UV ink onto a medium. The UV ink hardens when irradiated with a UV light ray. The light source module includes an irradiator that irradiates the UV ink with the UV light ray. The printer may include a guide shaft to/from which the light module is attachable/detachable and a driving controller that performs control of the irradiator. The light source module includes, in addition to the irradiator, a memory module that stores therein information indicating a light irradiation feature of the irradiator. The driving controller performs control of the irradiator by using the information indicating a light irradiation feature of the irradiator.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: January 26, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Kazunori Hiramatsu, Hiroaki Sakai
  • Patent number: 9229351
    Abstract: An image forming apparatus includes an exposure device having an adjustment period for adjusting an output while exposing a photosensitive drum to light prior to image formation and a developing device. The developing device is configured to change between a contact state where the photosensitive drum and a developing roller are in contact with each other and a separation state where they are separated from each other. The developing device changes from the separation state to the contact state when a portion on the photosensitive drum exposed to light in the adjustment period of the exposure device is at a developing position.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: January 5, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuhiro Funatani, Hiroaki Sakai, Akimichi Suzuki, Shuji Saito
  • Publication number: 20150369322
    Abstract: This Si-killed steel wire rod has Si-killed steel which contains specific chemical components that contain, as 80% or more of the number of inclusions, specific CaO—Al2O3—SiO2 inclusions, wherein the average composition of the MnO—Al2O3—SiO2 inclusions that satisfies the following (3A) satisfies the following (3B). (3A) If CaO+Al2O3+SiO2+MgO+MnO serves as the 100% standard, MnO+Al2O3+SiO2?80%, MnO>CaO. (3B) When CaO+Al2O3+SiO2+MgO+MnO serves as the 100% standard, MnO: 10 to 70%, Al2O3: 3 to 50%, SiO2: 20 to 75%.
    Type: Application
    Filed: January 15, 2014
    Publication date: December 24, 2015
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Tomoko SUGIMURA, Hiroaki SAKAI, Yasumasa YOSHIDA, Hirofumi TAI, Hiroki OHTA, Hiroyuki ONODA
  • Publication number: 20150301473
    Abstract: The present disclosure relates to a developing roller having a conductive support base, a surface of which is covered with a resin layer, wherein the resin layer contains conductive fine particles and soluble nylon serving as a binder resin, and the resin layer surface has a surface roughness Ra of at least 0.4 ?m, a waviness curve cycle of 50 to 400 ?m, and a waviness curve height of 2 to 10 ?m.
    Type: Application
    Filed: April 15, 2015
    Publication date: October 22, 2015
    Inventors: Yukimasa Watanabe, Sakae Saito, Hiroaki Sakai, Yasuhiro Oishi, Masashi Fujishima, Chikara Ishihara, Yasuhiro Tauchi
  • Publication number: 20150293477
    Abstract: A developing device supplies a developer to a photosensitive drum, which has a cylindrical shape, and is rotatable around an axis thereof for forming an electrostatic latent image on the circumferential surface thereof. The developing device is provided with a developing roller. The developing roller is disposed to face the photosensitive drum, and has a cylindrical shape. The developing roller is rotatable around an axis thereof for carrying a developer on the circumferential surface thereof. The developing roller is provided with a small diameter portion. The small diameter portion is a part of the circumferential surface of the developing roller. The small diameter portion extends from an axial end of the developing roller axially inward by a predetermined length, and has an outer diameter smaller than an axially middle portion of the developing roller.
    Type: Application
    Filed: April 7, 2015
    Publication date: October 15, 2015
    Inventors: Sakae Saito, Hiroaki Sakai, Yukimasa Watanabe, Yasuhiro Oishi, Masashi Fujishima, Chikara Ishihara, Yasuhiro Tauchi
  • Publication number: 20150293470
    Abstract: A developing device includes a housing, a development roller, and a roller gear. The roller gear is disposed at one axial end of the development roller and transmits a rotational drive force to the development roller. The development roller includes a sleeve and a coating layer. The coating layer is formed by dipping the sleeve in a dipping bath with the sleeve directed axially vertically. The development roller is mounted to the housing such that a lower axial end of the development roller at the time of the dipping is an opposite axial end to the one axial end at which the roller gear is disposed.
    Type: Application
    Filed: March 27, 2015
    Publication date: October 15, 2015
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Tamotsu SHIMIZU, Akihiro WATANABE, Chikara ISHIHARA, Yasuhiro TAUCHI, Masashi FUJISHIMA, Yu SASAKI, Hiroaki SAKAI, Yasuhiro OISHI, Yukimasa WATANABE
  • Patent number: 9158227
    Abstract: The present disclosure relates to a developing roller having a conductive support base, a surface of which is covered with a resin layer, wherein the resin layer contains conductive fine particles and soluble nylon serving as a binder resin, and the resin layer surface has a surface roughness Ra of at least 0.4 ?m, a waviness curve cycle of 50 to 400 ?m, and a waviness curve height of 2 to 10 ?m.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: October 13, 2015
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Yukimasa Watanabe, Sakae Saito, Hiroaki Sakai, Yasuhiro Oishi, Masashi Fujishima, Chikara Ishihara, Yasuhiro Tauchi
  • Publication number: 20150273866
    Abstract: A textile-printing apparatus includes a pre-treatment agent-applying section that applies a pre-treatment agent to a textile-printing medium, a press section that compresses, while heating the textile-printing medium, the textile-printing medium to which the pre-treatment agent has been applied, a printing liquid discharge section that discharges a printing liquid to the textile-printing medium that has been compressed while being heated by the press section, and a heater that heats the textile-printing medium to which the printing liquid has been discharged.
    Type: Application
    Filed: March 23, 2015
    Publication date: October 1, 2015
    Inventor: Hiroaki SAKAI
  • Publication number: 20150266323
    Abstract: A printer includes a base on which a medium is mounted, a liquid ejecting unit which performs printing on the medium mounted on the base, an AC servo motor which is installed in the base, and is driven when the base and the liquid ejecting unit are relatively moved, an inverter which is installed in the base and drives the AC servo motor based on power supplied from an external AC power supply, and a power supply portion which is installed in the base and supplies the power supplied from the AC power to the liquid ejecting unit supply through the power transmission cable. The power supply portion includes an AC/DC converter that converts the AC power to DC power and outputs the converted DC power to the power transmission cable.
    Type: Application
    Filed: March 16, 2015
    Publication date: September 24, 2015
    Inventors: Kazunori HIRAMATSU, Hiroaki SAKAI
  • Publication number: 20150258818
    Abstract: A printer includes a recording head performing recording on a medium and includes a base stand that has a mounting surface capable of mounting the medium. A pump that absorbs or suctions the medium mounted on the mounting surface of the base stand, in which a pressure or a suction force is applied from a part of the medium to an entirety thereof.
    Type: Application
    Filed: February 27, 2015
    Publication date: September 17, 2015
    Inventors: Hiroaki SAKAI, Yuichi HONOBE
  • Publication number: 20150239271
    Abstract: A recording device includes: a recording section that records an image on a recording medium; a detecting section that detects an image defect in the image recorded by the recording section; and a repair recording section that is provided separately from the recording section and that performs repair recording for the image defect detected by the detecting section. With such a configuration of the recording device, an image defect in the image recorded on a recording medium is repaired.
    Type: Application
    Filed: February 23, 2015
    Publication date: August 27, 2015
    Inventor: Hiroaki SAKAI
  • Publication number: 20150109363
    Abstract: A printer includes a light source module including an ejecting head that ejects a UV ink onto a medium. The UV ink hardens when irradiated with a UV light ray. The light source module includes an irradiator that irradiates the UV ink with the UV light ray. The printer may include a guide shaft to/from which the light module is attachable/detachable and a driving controller that performs control of the irradiator. The light source module includes, in addition to the irradiator, a memory module that stores therein information indicating a light irradiation feature of the irradiator. The driving controller performs control of the irradiator by using the information indicating a light irradiation feature of the irradiator.
    Type: Application
    Filed: October 9, 2014
    Publication date: April 23, 2015
    Inventors: Kazunori HIRAMATSU, Hiroaki SAKAI
  • Patent number: 8956568
    Abstract: A sample transfer mechanism of the present invention is characterized broadly by a sample gripping method in which a downward part of a sample vessel is gripped and a cover that achieves an effect as a guide such that gripping arms that grip the sample vessel avoid contact with other objects and bypass surrounding objects, particularly, the sample vessels in approaching and retracting motions. To enhance the effect as the guide and to ensure that the sample vessels can be mounted with a high degree of integration, the shape of the cover and disposition of the sample transfer mechanism are characterized in a number of manners. Thus, a sample transfer mechanism that can perform a transfer process safely with high throughput even under conditions in which a variety of types of sample vessels is mixed together and the sample vessels are mounted with a high degree of integration is provided.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: February 17, 2015
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Akihiro Ohiso, Yoshiteru Hirama, Tatsuya Fukugaki, Tetsuya Isobe, Hiroaki Sakai
  • Publication number: 20140326082
    Abstract: A sample processing system includes a sample vessel holder including a disk-shaped base section disposed so as to have a central axis extending in a vertical direction and a sample vessel holding section that is formed coaxially with, and above, the base section for holding a sample vessel in an upright posture. A conveyor conveys the sample vessel holder 1 placed thereon; and a holding plate is disposed so as to extend along an outer peripheral portion of a columnar space that has a central axis extending in the vertical direction, and is disposed at a position above a space past which the base section of the sample vessel holder moves along the conveyor and at a position past which at least the sample vessel holding section moves. This enables individual conveyance processing to be performed for each of multiple sample vessels.
    Type: Application
    Filed: October 1, 2012
    Publication date: November 6, 2014
    Inventors: Yoshiteru Hirama, Hiroshi Ohga, Tatsuya Fukugaki, Hiroaki Sakai, Kazuma Tamura
  • Publication number: 20140211807
    Abstract: It is determined whether or not the address of a first type specified in an address resolution query is an address that allows direct routing to a first network. If the direct routing is determined to be allowed, a routing table is configured such that a packet including, as a destination, the address of a second type obtained by the address resolution query is forwarded to the first network. If the direct routing is determined not to be allowed, the routing table is configured such that a packet including the obtained address of the second type as a destination is forwarded to a second network.
    Type: Application
    Filed: April 3, 2014
    Publication date: July 31, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Masahiko TAKENAKA, Kunikazu Matsumoto, Daisuke Shinomiya, YUTAKA TAKAHASHI, Hiroaki SAKAI
  • Patent number: 8693910
    Abstract: An image forming apparatus includes an image forming unit, a fixing unit, and a power control unit. The image forming unit forms an unfixed image on a recording material. The fixing unit includes an endless belt, a heater held in contact with the endless belt, a pressurization roller to form a fixing nip portion for pinching and conveying the recording material together with the heater via the endless belt, and a pressure changing mechanism to effect switching between a pressurization state and a pressure release state. The power control unit controls power to the heater. In response to transitioning from the pressure release state to the pressurization state, the power control unit starts power to the heater during a transition period before the pressurization state is attained and controls power to the heater such that a heater temperature does not exceed a predetermined upper limit temperature during the transition period.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: April 8, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuko Sekihara, Hiroaki Sakai, Hiroyuki Sakakibara
  • Patent number: D740435
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: October 6, 2015
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Mitsuru Oonuma, Hiroyuki Noda, Katsuhiro Kambara, Hiroaki Sakai
  • Patent number: D740956
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: October 13, 2015
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Mitsuru Oonuma, Hiroyuki Noda, Katsuhiro Kambara, Hiroaki Sakai
  • Patent number: D740957
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: October 13, 2015
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Mitsuru Oonuma, Hiroyuki Noda, Katsuhiro Kambara, Hiroaki Sakai