Patents by Inventor Yasuhiko Kosugi

Yasuhiko Kosugi 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: 20110087853
    Abstract: A storage device includes a nonvolatile storage section; and a control section that controls the nonvolatile storage section, wherein the control section includes an access control section that outputs a clock for access control for performing access control of a read/write of the nonvolatile storage section, and performs access control of the read/write to the nonvolatile storage section, and a masking process section that performs the masking process of a reset signal on the basis of the clock for access control from the access control section, and supplies the reset signal after the masking process to the access control section.
    Type: Application
    Filed: September 28, 2010
    Publication date: April 14, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Shinichi Yamada, Yasuhiko Kosugi, Noboru Asauchi, Yoshihiro Nakamura
  • Publication number: 20110058420
    Abstract: A storage apparatus including a nonvolatile storage section and a control section controlling the nonvolatile storage section, wherein the control section has a detection circuit detecting floating state in at least one of power supply terminal connected to host side power supply terminal to which a power supply voltage is supplied from the host device, and ground terminal connected to host side ground terminal to which a ground voltage is supplied from the host device and a mask process section performing a mask process of the system clock that is used to control the nonvolatile storage section, wherein the mask process section masks the system clock if the floating state is detected by the detection circuit.
    Type: Application
    Filed: September 3, 2010
    Publication date: March 10, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Shinichi Yamada, Yasuhiko Kosugi, Noboru Asauchi, Yoshihiro Nakamura
  • Publication number: 20100289847
    Abstract: A circuit board of an ink cartridge is provided with a plurality of terminals, with the contact portions of the plurality of terminals forming a plurality of lines. The contact portions of two terminals used for detecting installation are positioned in a first line, and the contact portion of a power terminal is positioned between the two terminals. The first line may be positioned to a leading side when the ink cartridge is moved in a prescribed direction to effect installation in a printer. Alternatively, the first line may be the line closest to an opening of an ink delivery port. Alternatively, the first line may be the line closest to an ink delivery needle.
    Type: Application
    Filed: May 13, 2010
    Publication date: November 18, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Taku ISHIZAWA, Satoshi Shinada, Izumi Nozawa, Yuji Aoki, Hiroyuki Kawate, Takakazu Fukano, Noboru Asauchi, Yasuhiko Kosugi
  • Publication number: 20100257327
    Abstract: A memory includes a nonvolatile memory cell array, and a memory control circuit which carries out writing of data to and reading of data from the memory cell array in access units of N bits where N is an integer equal to 2 or greater. The memory cell array includes a rewritable area in which both writing of data and reading of data are permissible, and a read-only area in which writing of data is prohibited and reading of data is permissible. The rewritable area is configured so that the N bits constituting one access unit contain both actual data and an error detection code. The read-only area is divided between an actual data area in which the N bits constituting one access unit contain actual data, and an error detection code area in which the N bits constituting one access unit contain error detection codes.
    Type: Application
    Filed: March 31, 2010
    Publication date: October 7, 2010
    Inventor: Yasuhiko Kosugi
  • Publication number: 20100079521
    Abstract: A liquid ejecting apparatus includes: a head having a nozzle; a pressure-changing unit for changing pressure of liquid in the nozzle in such a manner that the liquid is ejected from the nozzle; a level-data setting unit for setting a selected level data from a plurality of level data, based on an ejecting data; a driving-signal generator for generating a first driving signal and a second driving signal; and a driving-pulse generator for generating a driving pulse based on the selected level data and the first driving signal and the second driving signal. The first driving signal and the second driving signal are periodical signals having a same period. The first driving signal includes a first large-drop pulse-wave and a third large-drop pulse-wave. The second driving signal includes a second large-drop pulse-wave. The first large-drop pulse-wave, the second large-drop pulse-wave and the third large-drop pulse-wave have a same waveform, and appear in that order at regular intervals.
    Type: Application
    Filed: September 25, 2009
    Publication date: April 1, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Satoru Hosono, Toshiki Usui, Yasuhiko Kosugi
  • Publication number: 20100045718
    Abstract: A drive power control device according to the present invention includes a transistor, which is input with a driving signal before current amplification into a base thereof, and which amplifies a current of the driving signal to drive an actuator; a switching element, which switches an input of a supply voltage to a collector of the transistor between on and off; and a voltage comparator, which compares a base voltage and a collector voltage of the transistor, and which controls the switching element such that the input of the supply voltage to the collector is turned off when a predetermined voltage difference occurs, and the input of the supply voltage to the collector is turned on when a predetermined voltage difference does not occur.
    Type: Application
    Filed: November 3, 2009
    Publication date: February 25, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Yasuhiko KOSUGI
  • Publication number: 20100007685
    Abstract: A liquid container mountable on a liquid jetting apparatus, comprises an electrical circuit including a first electrical device and a second electrical device, a first terminal, and a second terminal. The electrical circuit is constituted such that the liquid jetting apparatus is able to execute a first communication with the first electrical device and a second communication with the second electrical device using a terminal potential difference which is a difference between electric potential inputs to the first and second terminals, and that the liquid jetting apparatus is able to selectively execute either one of the first communication and the second communication by using different magnitudes of the terminal potential difference.
    Type: Application
    Filed: July 9, 2009
    Publication date: January 14, 2010
    Inventor: Yasuhiko Kosugi
  • Publication number: 20100007702
    Abstract: A liquid container mountable on a liquid jetting apparatus, comprises: an electrical circuit including a first electrical device and a second electrical device; a first terminal; a second terminal; and a third terminal. The electrical circuit being constituted such that the liquid jetting apparatus is able: to execute sending of signals to the first electrical device and sending of signals to the second electrical device using a terminal potential difference which is a difference between electric potential inputs to the first and second terminals, to selectively execute either one of the sending of signals to the first electrical device and the sending of signals to the second electrical device by using different magnitudes of the terminal potential difference, and to execute receiving of signals from the first electrical device via the third terminal.
    Type: Application
    Filed: July 9, 2009
    Publication date: January 14, 2010
    Inventor: Yasuhiko Kosugi
  • Patent number: 7638992
    Abstract: A drive power control device according to the present invention includes a transistor, which is input with a driving signal before current amplification into a base thereof, and which amplifies a current of the driving signal to drive an actuator; a switching element, which switches an input of a supply voltage to a collector of the transistor between on and off; and a voltage comparator, which compares a base voltage and a collector voltage of the transistor, and which controls the switching element such that the input of the supply voltage to the collector is turned off when a predetermined voltage difference occurs, and the input of the supply voltage to the collector is turned on when a predetermined voltage difference does not occur.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: December 29, 2009
    Assignee: Seiko Epson Corporation
    Inventor: Yasuhiko Kosugi
  • Patent number: 7625060
    Abstract: An ink cartridge 111 holding a recording material used for printing therein has a sensor substitute module 170 to simulate operations of a cartridge having a built-in sensor. As a control circuit 222 of a printer 200 gives a sensor access instruction to the ink cartridge 111, the sensor substitute module 170 generates a specific signal and outputs the specific signal via an output module 178. The specified signal is equivalent to a signal that represents a sufficient level of remaining ink and is expected to be output from the built-in sensor of the cartridge. The ink cartridge 111 is thus applicable to both a printer designed for the use of a cartridge with a built-in sensor and a printer designed for the use of a cartridge without a built-in sensor. Namely the cartridge of the invention is compatible with the cartridge having the built-in sensor.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: December 1, 2009
    Assignee: Seiko Epson Corporation
    Inventors: Yasuhiko Kosugi, Toshihisa Saruta
  • Patent number: 7611214
    Abstract: A liquid ejecting apparatus includes: a head having a nozzle; a pressure-changing unit for changing pressure of liquid in the nozzle in such a manner that the liquid is ejected from the nozzle; a level-data setting unit for setting a selected level data from a plurality of level data, based on an ejecting data; a driving-signal generator for generating a first driving signal and a second driving signal; and a driving-pulse generator for generating a driving pulse based on the selected level data and the first driving signal and the second driving signal. The first driving signal and the second driving signal are periodical signals having a same period. The first driving signal includes a first large-drop pulse-wave and a third large-drop pulse-wave. The second driving signal includes a second large-drop pulse-wave. The first large-drop pulse-wave, the second large-drop pulse-wave and the third large-drop pulse-wave have a same waveform, and appear in that order at regular intervals.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: November 3, 2009
    Assignee: Seiko Epson Corporation
    Inventors: Satoru Hosono, Yasuhiko Kosugi, Toshiki Usui
  • Publication number: 20090153610
    Abstract: An electronic apparatus includes a plurality of semiconductor storage devices, each of which includes an access determination unit that determines whether the semiconductor storage device is accessed, an input terminal and an output terminal used for connection checking, a normally-closed switching element that electrically disconnects the input terminal from the output terminal when the access determination unit determined that the semiconductor storage device is accessed, and a bypass circuit that electrically connects the input terminal to a reference point through predetermined impedance.
    Type: Application
    Filed: December 9, 2008
    Publication date: June 18, 2009
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Yasuhiko KOSUGI
  • Patent number: 7530671
    Abstract: A printing apparatus includes a carriage and an electrode. The carriage is for moving a nozzle. The electrode moves with the carriage, and is adapted to attract an electrically-charged ink droplet ejected from the nozzle but not landing on a medium.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: May 12, 2009
    Assignee: Seiko Epson Corporation
    Inventor: Yasuhiko Kosugi
  • Patent number: 7370930
    Abstract: The ink unit of a printer has a memory circuit (memory element) for non-contact communication. The memory circuit has a hold mode M2 in which memory access commands from the transmitter/receiver are not received, and an active mode M4 in which memory access is permitted upon receipt of a memory access command. The memory circuit shifts into active mode M4 if the ID contained in the active mode command matches its own ID when an active mode command containing the cartridge ID is received from the transmitter/receiver while in hold mode M2. The reception of an anti-collision start command from the transmitter/receiver while in hold mode M2 results in a shift to anti-collision mode M3 to check the ID.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: May 13, 2008
    Assignee: Seiko Epson Corporation
    Inventor: Yasuhiko Kosugi
  • Patent number: 7267421
    Abstract: An ink cartridge has an ink sensor. A printer's control device transmits a detection command and specified detection condition to the cartridge by radio. In response to the detection command, a sensor controller actuates and vibrates the sensor under the specified detection condition. The sensor is attached to a resonance chamber disposed in an ink chamber. The vibration frequency the sensor is regulated by a resonance frequency of the resonance chamber. The resonance frequency is varied by ink in the resonance chamber. Resonance frequency detection specifies the presence or absence of ink in the resonance chamber and so the quantity of ink. The printer's control device receives the detection result with the detection condition from the cartridge, and checks whether detection was performed under the specified detection condition, to verify the detection result's validity.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: September 11, 2007
    Assignee: Seiko Epson Corporation
    Inventors: Noboru Asauchi, Yasuhiko Kosugi
  • Publication number: 20070171258
    Abstract: A drive power control device according to the present invention includes a transistor, which is input with a driving signal before current amplification into a base thereof, and which amplifies a current of the driving signal to drive an actuator; a switching element, which switches an input of a supply voltage to a collector of the transistor between on and off; and a voltage comparator, which compares a base voltage and a collector voltage of the transistor, and which controls the switching element such that the input of the supply voltage to the collector is turned off when a predetermined voltage difference occurs, and the input of the supply voltage to the collector is turned on when a predetermined voltage difference does not occur.
    Type: Application
    Filed: January 24, 2007
    Publication date: July 26, 2007
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Yasuhiko Kosugi
  • Patent number: 7213897
    Abstract: The present invention has a recording head of jetting ink drops to record, a carriage adapted to be loaded an ink container storing ink to be fed to the recording head in a removable state, and a communication unit of communicating with a storage element for the ink container installed in the ink container. The communication unit can communicate with the storage element for the ink container when the ink container is not loaded on the carriage. Accordingly, the communication unit can communicate with the storage element for the ink container before mounting the ink container on the carriage.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: May 8, 2007
    Assignee: Seiko Epson Corporation
    Inventor: Yasuhiko Kosugi
  • Patent number: 7201463
    Abstract: A cartridge 100 utilizes a carrier wave of a signal transmitted from a printer PT to generate driving electric powers required for driving respective circuits elements including a sensor SS of a piezoelectric element. The generated electric power is supplied to a sensor driving voltage generator 220 and is then to the sensor SS. The sensor driving voltage generator 220 supplies the electric power to the sensor SS via a supply circuit having a higher impedance. The sensor SS is discharged via a discharge circuit having a lower impedance. Even when there is a limited electric power supply, the structure enables the sensor SS to release a large energy in a unit time and ensures a sufficient displacement of vibration in the sensor SS.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: April 10, 2007
    Assignee: Seiko Epson Corporation
    Inventors: Yasuhiko Kosugi, Noboru Asauchi, Yuichi Nishihara
  • Patent number: 7155972
    Abstract: This invention is an apparatus configured to receive expendable from an expendable container with a piezoelectric element attached. This apparatus has a detection signal generation circuit configured to charge and discharge the piezoelectric element, and generate a detection signal including information representing a cycle of remaining vibration of the piezoelectric element after a lapse of a predetermined standby time from a completion of the discharge; and a controller configured to generate a clock signal, and control the charge and the discharge of the piezoelectric element. The cycle is available for determining whether a residual quantity of the expendable is greater than a preset level. The controller is configured to determine the predetermined standby time by counting a number of pulses in the clock signal.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: January 2, 2007
    Assignee: Seiko Epson Corporation
    Inventor: Yasuhiko Kosugi
  • Patent number: 7142163
    Abstract: A plurality of small loop antenna cells 61, 62 and 63 are magnetically coupled to an antenna coil 8 of a non-contact type data carrier 3. In the plurality of small loop antenna cells, the directions of the magnetic moments of the signals transmitted to the non-contact type data carrier 3 are opposite to each other, the sum of the magnetic moments generated from all the small loop antenna cells 61 to 63 is zero and a conductor forming a short ring pattern 67 is provided collectively for the plurality of small loop antenna cells. Thus, imbalance caused between the small loop antenna cells 61 to 63 can be compensated for by the short ring pattern 67.
    Type: Grant
    Filed: August 30, 2004
    Date of Patent: November 28, 2006
    Assignees: Seiko Epson Corporation, Yoshikawa RF Systems Co., Ltd.
    Inventors: Takakazu Fukano, Yasuhiko Kosugi, Noboru Asauchi, Eiichi Ishii