Patents by Inventor Takashi Nagai

Takashi Nagai 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: 7725057
    Abstract: Disclosed is an image forming method, containing a development step of developing an electrostatic latent image formed on an electrostatic image supporting material using a toner formed on a development sleeve in the from of a thin layer to form a toner image, wherein a ten-point average roughness Rz on the surface of the development sleeve is from 3.0 to 5.7 ?m, a volume average particle size of toner particles is from 6.0 to 8.0 ?m, the content of a volume average particle size of the toner particles of 5.0 ?m or less is from 2.2 to 11.0% by volume, a shape coefficient SF-1 of the toner particles that is measured by an image-analyzing apparatus satisfies the relation: 115?SF-1?155, and a shape coefficient SF-2 of the toner particles that is measured by an image-analyzing apparatus satisfies the relation: 112?SF-2?150.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: May 25, 2010
    Assignee: Kyocera Mita Corporation
    Inventor: Takashi Nagai
  • Patent number: 7527907
    Abstract: The present invention provides a toner for electrostatic latent image development and a method of magnetic monocomponent development using the toner which can prevent the toner adhesion to a photoconductor for a long time period and can obtain an image having high quality by maintaining functions of the toner for a long time period or by favorably adjusting the conveying property of the toner on a developing sleeve. In a toner for electrostatic latent image development which contains toner particles and inorganic particles and a method of development using the toner, the toner particles exhibit a shape factor SF-1 which satisfies the relationship 115?SF-1?150 and a shape factor SF-2 which satisfies the relationship 115?SF-2?145 and, at the same time, a quantity of inorganic particles which are in a floating state is set to a value which falls within a range from 10 weight % to 25 weight % with respect to the total quantity of the inorganic particles.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: May 5, 2009
    Assignee: Kyocera Mita Corporation
    Inventor: Takashi Nagai
  • Patent number: 7514196
    Abstract: The present invention provides a developing method and a developing unit which can obtain a favorable image quality and the like even when a surface roughness Rz of a developing sleeve is changed or when an amorphous-silicon photoconductor is used by allowing the magnetic monocomponent toner to effectively jump to a photoconductor from a developing sleeve. To attain such an object, the present invention provides a magnetic monocomponent jumping developing system and a developing unit which uses the method, wherein as the magnetic monocomponent toner, a toner having a volume center particle size which is calculated from the particle size distribution based on volume and falls within a range from 6.0 to 7.8 ?m, having the sphericity which falls within a range from 0.92 to 0.98, and setting a toner quantity having a volume particle size of 5.04 ?m or less to a value which falls within a range from 2.5 to 10.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: April 7, 2009
    Assignee: Kyocera Mita Corporation
    Inventor: Takashi Nagai
  • Publication number: 20080213686
    Abstract: The present invention provides a developing method and a developing unit which can obtain a favorable image quality and the like even when a surface roughness Rz of a developing sleeve is changed or when an amorphous-silicon photoconductor is used by allowing the magnetic monocomponent toner to effectively jump to a photoconductor from a developing sleeve. To attain such an object, the present invention provides a magnetic monocomponent jumping developing system and a developing unit which uses the method, wherein as the magnetic monocomponent toner, a toner having a volume center particle size which is calculated from the particle size distribution based on volume and falls within a range from 6.0 to 7.8 ?m, having the sphericity which falls within a range from 0.92 to 0.98, and setting a toner quantity having a volume particle size of 5.04 ?m or less to a value which falls within a range from 2.5 to 10.
    Type: Application
    Filed: February 28, 2005
    Publication date: September 4, 2008
    Inventor: Takashi Nagai
  • Publication number: 20080213680
    Abstract: The present invention provides a toner for electrostatic latent image development and a method of magnetic monocomponent development using the toner which can prevent the toner adhesion to a photoconductor for a long time period and can obtain an image having high quality by maintaining functions of the toner for a long time period or by favorably adjusting the conveying property of the toner on a developing sleeve. In a toner for electrostatic latent image development which contains toner particles and inorganic particles and a method of development using the toner, the toner particles exhibit a shape factor SF-1 which satisfies the relationship 115?SF-1?150 and a shape factor SF-2 which satisfies the relationship 115?SF-2?145 and, at the same time, a quantity of inorganic particles which are in a floating state is set to a value which falls within a range from 10 weight % to 25 weight % with respect to the total quantity of the inorganic particles.
    Type: Application
    Filed: February 25, 2005
    Publication date: September 4, 2008
    Inventor: Takashi Nagai
  • Patent number: 7405922
    Abstract: A high reliability and low power consumption anti-lock brake system is disclosed. The two pilot valves are controlled so as not to be energized concurrently. The secondary battery of the anti-lock brake system is charged by a power supply and/or a generator. An electric double layer capacitor having a housing made of functionally graded aluminum ceramic material is used as the secondary battery.
    Type: Grant
    Filed: February 6, 2006
    Date of Patent: July 29, 2008
    Assignee: NEC Tokin Corporation
    Inventors: Kiyoshi Kawaguchi, Nobuo Seko, Tatsuo Itoh, Takashi Nagai, Yoshiaki Okita, Hiroyasu Yamamoto
  • Patent number: 7378613
    Abstract: A robot main body is provided with a protection cover. The robot main body can be swung by a rotary pipe shaft holding a wire feed device and including a hollow portion and is structured such that a connecting cable and/or a gas hose are guided through the hollow portion of the rotary pipe shaft and are then guided through the forearm portion and base portion thereof. The protection cover covers the portions of the connecting cable and/or gas hose ranging from the connecting portion of the wire feed device and connecting cable and/or gas hose to the rotary pipe shaft.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: May 27, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshiyuki Mishima, Yaushi Mukai, Wataru Takahashi, Takashi Nagai, Takayasu Ohara
  • Patent number: 7378612
    Abstract: Accommodating a welding control cable for connecting a welding power supply and a robot main body and a wire feeder sensor cable connected to a wire feeder encoder in a robot main body driving power cable connecting the robot main body and the robot controller of an arc welding robot. This configuration saves the number of cables to be connected thus improving the installation workability in system deployment on site as well as reducing the overall cost.
    Type: Grant
    Filed: May 23, 2005
    Date of Patent: May 27, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Wataru Takahashi, Yasushi Mukai, Kazunori Matsumoto, Toshiyuki Mishima, Takashi Nagai
  • Publication number: 20080100869
    Abstract: An information processing device provided with a direct printing function that causes a printer device to execute printing without a printer driver, comprising: a setup storage unit that stores a combination of set values (direct printing setup data) relating to a plurality of printing setting items (direct setting items) in association with a specific folder or file (hot folder, or the like); a setup registration unit that creates direct printing setup data based on a hot folder or the like selected by a user and registers that direct printing setup data in the setup storage unit; and a unit that generates, when a printing target file has been dragged and dropped to a hot folder or the like, printing data based on the printing target file and the direct printing setup data associated with the hot folder or the like, and transmits the generated printing data to the predetermined printing device, wherein the setup registration unit includes: an acquisition unit that acquires a combination of preset values rela
    Type: Application
    Filed: September 28, 2007
    Publication date: May 1, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takashi NAGAI
  • Publication number: 20080088865
    Abstract: An information processing device comprising a memory unit that stores a combination of set values (hereinafter referred to as “preset data”) relating to a plurality of printing setting items, and information of printing setting items (hereinafter referred to as “temporary setting items”) for which set values can be specified temporarily for the preset data among the plurality of printing setting items in a state where the combination and the information are associated with each other.
    Type: Application
    Filed: October 11, 2007
    Publication date: April 17, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takashi NAGAI
  • Patent number: 7350880
    Abstract: A high reliability and low power consumption anti-lock brake system is disclosed in the present invention. The two pilot valves in the present invention are controlled so as not to be energized concurrently. The secondary battery of the anti-lock brake system is charged by power supply and/or generator. An electric double layer capacitor comprising a housing made of functionally graded aluminum-ceramic material is used as the secondary battery.
    Type: Grant
    Filed: February 6, 2006
    Date of Patent: April 1, 2008
    Assignee: NEC Tokin Corporation
    Inventors: Kiyoshi Kawaguchi, Nobuo Seko, Tatsuo Itoh, Takashi Nagai, Yoshiaki Okita, Hiroyasu Yamamoto
  • Publication number: 20070263247
    Abstract: A printing program, which causes a host device to execute a process of saving a printing file, which is printable by a printer, to a removable memory which is attachable with respect to the printer; causes the host device to execute: receiving an operation of dropping an icon, which is displayed on a display section equipped in the host device and represents a print target file to be printed by the printer, onto an icon displayed on the display section and representing saving to the removable memory; processing the print target file, which is subjected to the drop operation, into the printing file; and saving the obtained printing file to the removable memory.
    Type: Application
    Filed: January 3, 2007
    Publication date: November 15, 2007
    Applicant: Seiko Epson Corporation
    Inventor: Takashi Nagai
  • Publication number: 20070231019
    Abstract: Disclosed is an image forming method, containing a development step of developing an electrostatic latent image formed on an electrostatic image supporting material using a toner formed on a development sleeve in the from of a thin layer to form a toner image, wherein a ten-point average roughness Rz on the surface of the development sleeve is from 3.0 to 5.7 ?m, a volume average particle size of toner particles is from 6.0 to 8.0 ?m, the content of a volume average particle size of the toner particles of 5.0 ?m or less is from 2.2 to 11.0% by volume, a shape coefficient SF-1 of the toner particles that is measured by an image-analyzing apparatus satisfies the relation: 115?SF-1?155, and a shape coefficient SF-2 of the toner particles that is measured by an image-analyzing apparatus satisfies the relation: 112?SF-2?150.
    Type: Application
    Filed: March 28, 2007
    Publication date: October 4, 2007
    Inventor: Takashi Nagai
  • Publication number: 20070216620
    Abstract: A charge pump circuit has a first controller (in the embodiments, switches SW1a to SW4b and charge transfer transistors P2b to P4b) that increases and decreases the number of step-up units actually operated according to the specified step-up factor; and a second controller (in the embodiments, an inverter INV4) varies the step-up input voltage in one of the step-up units according to the specified step-up factor. With this configuration, it is possible to vary the step-up factor finely and in a wide range without unnecessarily increasing the number of step-up stages.
    Type: Application
    Filed: March 19, 2007
    Publication date: September 20, 2007
    Inventors: Takashi Nagai, Akito Ito
  • Publication number: 20070133046
    Abstract: A printing program allows a host apparatus to perform print request processing on a printer. The host apparatus includes at least one first file each storing a printing condition. The printing program allows the host apparatus to execute detecting a second file including an object to be printed and one of the at least one first file, the second file and the one first file being designated by a user; and issuing a print request for printing the detected second file under the printing condition stored in the detected first file to the printer.
    Type: Application
    Filed: December 5, 2006
    Publication date: June 14, 2007
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takashi Nagai
  • Publication number: 20070017911
    Abstract: The invention comprises a robot main body and a protection cover. The robot main body can be swung by a rotary pipe shaft holding a wire feed device and including a hollow portion and is structured such that a connecting cable and/or a gas hose are guided through the hollow portion of the rotary pipe shaft and are then guided through the forearm portion and base portion thereof. The protection cover covers the portions of the connecting cable and/or gas hose ranging from the connecting portion of the wire feed device and connecting cable and/or gas hose to the rotary pipe shaft.
    Type: Application
    Filed: June 9, 2005
    Publication date: January 25, 2007
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshiyuki Mishima, Yasushi Mukai, Wataru Takahashi, Takashi Nagai, Takayasu Ohara
  • Publication number: 20060278621
    Abstract: Accommodating a welding control cable for connecting a welding power supply and a robot main body and a wire feeder sensor cable connected to a wire feeder encoder in a robot main body driving power cable connecting the robot main body and the robot controller of an arc welding robot. This configuration saves the number the number of cables to be connected thus improving the installation workability in system deployment on site as well as reducing the overall cost.
    Type: Application
    Filed: May 23, 2005
    Publication date: December 14, 2006
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Wataru Takahashi, Yasushi Mukai, Kazunori Matsumoto, Toshiyuki Mishima, Takashi Nagai
  • Patent number: 7132211
    Abstract: A magnetic toner contains, as a magnetic powder, magnetic iron oxide having an octahedral particle shape and an average particle diameter of 0.21 ?m or larger and containing 18% or more by weight of FeO. The magnetic toner is so prepared as to have a bulk density A (g/cm3) and a magnetic powder content B (% by weight) that fulfill the formulae 0.8?A/B×100?1.6 and 35?B?50. This alleviates the reddishness of images produced with the magnetic toner, and alleviates the disturbance of a thin toner layer on a developing sleeve and thus the fogging resulting therefrom.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: November 7, 2006
    Assignee: Kyocera Mita Corporation
    Inventors: Hiroko Sugimoto, Takashi Nagai, Toru Takatsuna, Seiji Kikushima
  • Publication number: 20060182601
    Abstract: In case a robot performs work inside the box-shaped workpiece held on a jig 16, it is possible to avoid interference with an interference point 18 in a curved recessed space of the arm by curving the first arm of the robot 9 in a direction of rotation with respect to a swing part 4 and in a direction opposite to the interior angle formed by the first arm 9 and the second arm 12. This allows work to be done as far as the work bottom 19. As a result, it is possible to reserve a wider work area 20 inside the workpiece than the work area inside the workpiece of a related art robot.
    Type: Application
    Filed: June 9, 2005
    Publication date: August 17, 2006
    Inventors: Takashi Nagai, Yasushi Mukai, Wataru Takahashi, Toshiyuki Mishima, Takayasu Ohara
  • Publication number: 20060126269
    Abstract: A high reliability and low power consumption anti-lock brake system is disclosed in the present invention. The two pilot valves in the present invention are controlled so as not to be energized concurrently. The secondary battery of the anti-lock brake system is charged by power supply and/or generator. An electric double layer capacitor comprising a housing made of functionally graded aluminum—ceramic material is used as the secondary battery.
    Type: Application
    Filed: February 6, 2006
    Publication date: June 15, 2006
    Inventors: Kiyoshi Kawaguchi, Nobuo Seko, Tatsuo Itoh, Takashi Nagai, Yoshiaki Okita, Hiroyasu Yamamoto