Patents by Inventor Atsushi Murakami

Atsushi Murakami 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: 7678489
    Abstract: The present invention provides a separator for fuel cell, which is a molded article including a resin and a conductive filler, wherein a contact angle of water on a surface of the separator for fuel cell is from 20 to 85°, and a process for producing the separator for fuel cell.
    Type: Grant
    Filed: October 5, 2005
    Date of Patent: March 16, 2010
    Assignee: Nichias Corporation
    Inventors: Hideyuki Shishitani, Atsushi Murakami
  • Patent number: 7669990
    Abstract: The present invention provides a liquid droplet ejecting device including a liquid droplet ejecting head; a liquid storage unit that stores a liquid; a first flow path and a second flow path that connect the liquid droplet ejecting head and the liquid storage unit, the second flow path connecting with the first flow path in the liquid droplet ejecting head; a bypass flow path connected with the first flow path and the second flow path; a liquid feed unit provided between the liquid storage unit and a connecting portion of the bypass flow path and the first flow path, and circulating the liquid in the liquid droplet ejecting head and the liquid storage unit, and a pressure control unit provided at the bypass flow path, and controlling pressure of the liquid flowing through the bypass flow path from the first flow path side to the second flow path side.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: March 2, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Atsushi Murakami, Masashi Hiratsuka, Kishiharu Itazu
  • Patent number: 7657532
    Abstract: There is provided a password management device, password management method, and password management program to carry out secure logon. The management device includes: a first password storage region; a second password storage region; a password state information storage region that stores each of states of passwords as password state information; a wireless communication section that performs reading from the first password storage region and the second password storage region and performs reading from and writing into the password state information storage region, in accordance with an instruction from a PC via wireless communication with a reader/writer; and a contactless IC card control section that generates a new password if a change of a password registered in the PC to a new password is determined to be necessary, and writes the new password into a storage region different from another storage region of the registered password.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: February 2, 2010
    Assignee: Fujitsu Limited
    Inventor: Atsushi Murakami
  • Patent number: 7650393
    Abstract: Loads on access destinations are balanced. A first controller and a second controller, which accept requests from a plurality of sources, and write and read data to/from a storage device in response to these requests, are provided. The first controller returns to at least one first source of a plurality of sources a response to a request from the first source, and does not return to a second source other than a first source a response to a request from the second source. The second controller does not return a response to a request from a first source to the first source receiving a response from the first controller, and returns a response from a second source to the second source not receiving a response from the first controller.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: January 19, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Nobuyuki Saika, Atsushi Murakami
  • Patent number: 7645013
    Abstract: In an image recording apparatus, reference patterns are provided on a surface of a transport belt that transports a recording medium such as paper attracted thereto to image recording sections defined by recording heads. It is arranged such that the reference patterns are detected while being transported as the transport belt is driven, and a speed change of the transport belt and a position shift in a direction perpendicular to the transporting direction of the transport belt are calculated based on information resulting from the detection, thereby controlling ejection timing and ejection position of ink droplets ejected from the recording heads.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: January 12, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Atsushi Murakami, Akira Mihara, Hiroaki Satoh, Masami Furuya, Kishiharu Itazu, Hiroshi Ikeda
  • Patent number: 7637159
    Abstract: An inclination of an inclined surface formed by working a ridge of a resonator is set to be within a predetermined angular range, whereby a leakage of vibration in the out-of-plane direction is reduced, the leakage of vibration being generated according to the detuning degree adjustment. In addition, a single laser beam is irradiated onto the ridge at an incident angle within a predetermined angular range, whereby a simple working on the inclined surface is established for the leakage vibration adjustment. A degree of the leakage vibration of the resonator is determined based on a relationship with the drift amount that is a ratio of the angular velocity change, and the inclination of the inclined surface is set to be within a predetermined angular range, thereby suppressing the drift amount.
    Type: Grant
    Filed: March 12, 2007
    Date of Patent: December 29, 2009
    Assignee: Citizen Holdings Co., Ltd.
    Inventors: Izumi Yamamoto, Takashi Moriya, Tomoo Ikeda, Atsushi Murakami, Akihiro Shioji
  • Publication number: 20090148775
    Abstract: The present invention provides a fuel cell separator resin composition comprising: (A) an epoxy resin; (B) a curing agent; (C) a curing accelerator comprising a salt of a diazabicyclo compound and an organic acid; and (D) a carbon material, wherein the content of the carbon material (D) is 35 to 85% by mass based on the total amount of the composition, wherein the carbon material (D) comprises high crystalline artificial graphite having a particle size of 150 to 500 ?m in an amount of 5 to 100% by mass based on the total amount of the carbon material (D), and wherein the content of the curing accelerator (C) is 1 to 20 parts by weight per 100 parts by weight of the curing agent (B).
    Type: Application
    Filed: May 23, 2008
    Publication date: June 11, 2009
    Applicant: NICHIAS CORPORATION
    Inventors: Atsushi Murakami, Takayoshi Shimizu
  • Patent number: 7533807
    Abstract: Private information, such as a face image, to specify an applicant is input through input terminal devices. An ID number is read from an identification medium, using an IC reader/writers contained in printers. The private information is printed on a printing surface of the identification medium along with the ID number. The printing history at this time is stored in an issuance server in association with the ID number. The identification medium with surface information printed on the printing surface is set in a recording terminal device. The ID number is read from the identification medium, using the IC reader/writer, and the printing history is read form the issuance server, using the ID number as a key. Based on the read-out printing history, the personal information is recorded in an IC chip of the identification medium along with the ID number.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: May 19, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Atsushi Murakami
  • Publication number: 20090102879
    Abstract: An inkjet recording apparatus has: a recording head of an inkjet type having a liquid ejection surface where a plurality of nozzles which eject liquid are arranged, a supply port which supplies the liquid to an internal flow channel connected to the plurality of nozzles, and an outlet port which is connected to the supply port via the internal flow channel and through which the liquid in the internal flow channel is expelled; a first liquid chamber which is connected to the supply port of the recording head via a first external flow channel; a second liquid chamber which is connected to the outlet port of the recording head via a second external flow channel; a liquid buffer chamber which stores the liquid supplied from a liquid supply source; a first connecting flow channel which connects the first liquid chamber to the liquid buffer chamber; a second connecting flow channel which connects the second liquid chamber to the liquid buffer chamber; a first pressure determination device which determines an intern
    Type: Application
    Filed: October 16, 2008
    Publication date: April 23, 2009
    Inventors: Masahito KATADA, Atsushi MURAKAMI
  • Publication number: 20090098447
    Abstract: The present invention provides a resin composition for fuel cell separator, comprising: (A) an epoxy resin; (B) a curing agent; (C) a curing accelerator; and (D) a carbon material, wherein the epoxy resin (A) or the curing agent (B) has a softening temperature of from 40 to 90° C., and wherein the carbon material (D) comprises a low crystalline artificial graphite having an average particle diameter of from 60 to 500 ?m in an amount of from 5 to 100% by mass of the carbon material (D).
    Type: Application
    Filed: October 10, 2008
    Publication date: April 16, 2009
    Applicant: NICHIAS CORPORATION
    Inventors: Atsushi MURAKAMI, Takayoshi SHIMIZU
  • Patent number: 7494211
    Abstract: A droplet discharge apparatus comprising: a plurality of droplet discharge units, which further include: a plurality of droplet discharge heads for discharging droplets from nozzles; an inflow path provided with a common flow path for supplying liquid to the plurality of droplet discharge heads; and a liquid storage portion for supplying a stored liquid to the inflow path and generating negative pressure in the droplet discharge heads, liquid storage sections being communicated by a communication path, is provide.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: February 24, 2009
    Assignee: Fuji Xerox Co., Ltd
    Inventor: Atsushi Murakami
  • Publication number: 20080268529
    Abstract: The present invention relates to a technique of amplifying a target nucleic acid contained in a specimen, and further to a technique of analyzing the amplified target nucleic acid. The present invention provides a nucleic acid amplification container (3) to be installed in a nucleic acid analyzing apparatus when used. The nucleic acid amplification container (3) includes a container main body (30) having a reactor (34) where the target nucleic acid and an amplification reagent are to be reacted, and a cap (31) that covers an upper opening of the reactor (34) and can be completely separated from the container main body (30).
    Type: Application
    Filed: June 1, 2005
    Publication date: October 30, 2008
    Applicant: ARKRAY, INC.
    Inventors: Noriaki Furusato, Koji Hirayama, Shinya Nakajima, Daisuke Takahashi, Shinichi Ohta, Atsushi Murakami
  • Patent number: 7429098
    Abstract: A liquid droplet discharge unit for discharging liquid droplets from nozzles is disclosed, and this liquid droplet discharge unit is constructed in such a way that plural nozzles are communicated with plural pressure chambers in which liquid is filled, the volumes of the respective pressure chambers are changed by plural drive elements to cause liquid droplets to be discharged from the respective nozzles. Further, one heat pipe, which is in thermal communication with the drive elements and moves heat to one end in the axial direction, is provided. A liquid droplet discharge apparatus equipped with such a liquid droplet discharge unit is also disclosed.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: September 30, 2008
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kohei Murakami, Kishiharu Itazu, Masashi Hiratsuka, Atsushi Murakami, Katsushi Amarume, Naoki Morita
  • Patent number: 7419258
    Abstract: A printer includes a first housing and a second housing. The first housing has a driver circuit board mounting an EEPROM storing control information regarding a mechanical module. The second housing is provided with a control circuit board storing a program for controlling the printer. In the printer, when the housings are assembled, the control information is available on the program, the control circuit board controls the mechanical module based on the program. Thus, in this printer, even when a component of the mechanical module has been replaced with a new one, the control circuit board can control the mechanical module smoothly based on the control information after replacement because the control information of the mechanical module is stored on in the EEPROM.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: September 2, 2008
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Atsushi Murakami, Masaaki Hori
  • Publication number: 20080201371
    Abstract: The present invention is to provide for example a node device that receives content catalog information having attribute information and delivered from a delivery device in an information delivery system, the nodes being mutually communicable through a network and divided into a plurality of groups, the node device including: a new content catalog receiving means for receiving new content catalog information, delivered from the delivery device and having attribute information; a new content catalog saving means; a condition information saving means for saving the grouping condition and presentation time information; a group judgment means for judging on the basis of the grouping condition; a presentation time judgment means; and a content catalog presentation setting means for presenting the new content catalog information after the presentation time arrives.
    Type: Application
    Filed: January 22, 2008
    Publication date: August 21, 2008
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Atsushi Murakami
  • Patent number: 7387376
    Abstract: A liquid droplet ejecting unit is disclosed wherein plural liquid droplet ejecting sub-units are provided which are arrayed in a direction substantially perpendicular to a conveying direction of a recording medium. Further, plural valves are provided which connect the respective liquid droplet ejecting sub-units and a liquid feed path. The valves comprise a valve body having an inlet port and an outlet port, and a floating member. The floating member is larger in radius than the inlet port and smaller in radius than the outlet port and has a lower specific gravity that the liquid. Thus, the floating member is floated in the liquid in the valve body and capable of closing the inlet port. An image forming apparatus using such a liquid droplet ejecting unit is also disclosed.
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: June 17, 2008
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Atsushi Murakami, Kishiharu Itazu, Kohei Murakami, Masashi Hiratsuka, Katsushi Amarume
  • Publication number: 20080120359
    Abstract: A distribution apparatus distributes content catalog information to a plurality of nodes in an information distribution system. The plurality of nodes are capable of performing communication with each other via a network, and are divided into a plurality of groups in accordance with a predetermined grouping condition. The content catalog information includes attribute information of content data which can be obtained by each of the nodes. The apparatus comprises storing means for storing new content catalog information including attribute information of new content data which can be newly obtained by each of the nodes, and distributing means for distributing the new content catalog information to the nodes belonging to each of the groups at timings which vary among the groups divided according to the grouping condition.
    Type: Application
    Filed: November 6, 2007
    Publication date: May 22, 2008
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Atsushi Murakami
  • Publication number: 20080105766
    Abstract: An injector has the solenoid valve including a solenoid coil, a stator, a stopper, a housing, a terminal, and a bush. The stator has the solenoid coil therein, and attracts an armature to one side in an axial direction of the armature upon energization of the solenoid coil. The stator is on the one side of the armature. The stopper restricts an amount of displacement of the armature toward the stator. The housing is on the one side of the stator. The terminal is inserted in the housing, and electrically connected to the solenoid coil. The bush is received by the housing, and insulates the terminal from the housing. The bush is forcibly inserted into an attachment hole, which is formed in the housing.
    Type: Application
    Filed: June 5, 2007
    Publication date: May 8, 2008
    Applicant: DENSO CORPORATION
    Inventors: Atsushi Murakami, Shinji Abo
  • Publication number: 20080032176
    Abstract: The present invention provides a fuel cell separator composition which is a molding material for forming a fuel cell separator and comprises (A) a naphthalene ring-containing epoxy resin, (B) a curing agent, (C) a curing accelerator and (D) a carbon material. Also disclosed are a fuel cell separator comprising the composition and a method for producing a fuel cell separator using the composition.
    Type: Application
    Filed: August 6, 2007
    Publication date: February 7, 2008
    Applicant: NICHIAS CORPORATION
    Inventors: Takayoshi Shimizu, Atsushi Murakami
  • Publication number: 20080022769
    Abstract: An inclination of an inclined surface formed by working a ridge of a resonator is set to be within a predetermined angular range, whereby a leakage of vibration in the out-of-plane direction is reduced, the leakage of vibration being generated according to the detuning degree adjustment. In addition, a single laser beam is irradiated onto the ridge at an incident angle within a predetermined angular range, whereby a simple working on the inclined surface is established for the leakage vibration adjustment. A degree of the leakage vibration of the resonator is determined based on a relationship with the drift amount that is a ratio of the angular velocity change, and the inclination of the inclined surface is set to be within a predetermined angular range, thereby suppressing the drift amount.
    Type: Application
    Filed: March 12, 2007
    Publication date: January 31, 2008
    Applicant: CITIZEN HOLDINGS CO., LTD.
    Inventors: Izumi Yamamoto, Takashi Moriya, Tomoo Ikeda, Atsushi Murakami, Akihiro Shioji