Patents Assigned to Seiko Epson
  • Publication number: 20030174180
    Abstract: It is an object of the invention to achieve a printing apparatus and the like that can provide a user with a print control program through an ink container, a printing medium, or a print head. The printing apparatus includes an ink container for containing ink, a printing medium capable of being printed with the ink of the ink container, and a print head for ejecting ink to the printing medium, where at least one of the ink container, the printing medium, and the print head can be attached/removed to/from a printing apparatus unit together with a memory, and on the memory is stored an acquisition program for acquiring, via the communications line, a print control program for printing on the printing medium by ejecting ink from the print head based on image data, or is stored the print control program.
    Type: Application
    Filed: January 29, 2003
    Publication date: September 18, 2003
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Hirokazu Nunokawa
  • Publication number: 20030174558
    Abstract: A nonvolatile register includes at least one memory cell. The memory cell has one word gate and first and second nonvolatile memory elements controlled by first and second control gates, respectively. Data is stored in one of the first and second nonvolatile memory elements, and the other of the first and second nonvolatile memory elements does not function as an element which stores data.
    Type: Application
    Filed: February 26, 2003
    Publication date: September 18, 2003
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Teruhiko Kamei, Masahiro Kanai
  • Publication number: 20030174362
    Abstract: When a control program is executed, it needs to be first decompressed and loaded into RAM. It has been impossible to immediately execute the control program when it is requested, causing a hindrance to processing speed acceleration.
    Type: Application
    Filed: February 25, 2003
    Publication date: September 18, 2003
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Atsushi Fujimaki
  • Publication number: 20030173108
    Abstract: A semiconductor device includes a semiconductor chip on which bumps are formed; and a substrate on which the semiconductor chip is mounted, the substrate including an interconnecting line to which each of the bumps is bonded. Surfaces of the bumps and a surface of the interconnecting line are formed of the same metal, and the interconnecting line is formed of a metal softer than nickel.
    Type: Application
    Filed: December 27, 2002
    Publication date: September 18, 2003
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Michiyoshi Takano
  • Publication number: 20030174108
    Abstract: A signal transmission device has a parallel/serial conversion section which converts a plurality of first parallel signals into at least one line of serial signals, the first parallel signals being output in parallel and in synchronization; and one or more serial transmission lines which transmit the serial signals converted by the parallel/serial conversion section.
    Type: Application
    Filed: March 14, 2003
    Publication date: September 18, 2003
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Toshiyuki Kasai
  • Publication number: 20030175041
    Abstract: An intermediate transfer belt comprises a plurality of layers including a conductive layer, and has a transfer area and a transfer protection area. A CPU 111 sends a control signal to a primary transfer bias generating circuit 116, and applies a primary transfer bias upon the conductive layer of the intermediate transfer medium through a bias applying member 31A. The CPU 111 changes an output value of the primary transfer bias in accordance with a predetermined bias change condition when secondary transfer is not ongoing and when a non-image area, in which there is no toner image transferred on the intermediate transfer belt, such as the transfer protection area is passing the primary transfer part.
    Type: Application
    Filed: February 25, 2003
    Publication date: September 18, 2003
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Keiichi Taguchi, Toshihiko Yamazaki
  • Patent number: 6621101
    Abstract: The present invention provides, in a TFT, a channel region facing a gate electrode through a gate insulating film, a source electrode connected to the channel region and a drain region connected to the channel region on the side opposite the source region that are formed in a polycrystal semiconductor film that was patterned in island forms. In the channel region, a recombination center is formed for capturing a small number of carriers (holes) by impurities, such as inert-gas, metals, Group III elements, Group IV elements and Group V elements, introduced to a predetermined region in this channel region, or by defects generated due to the introduction of these impurities. The present invention thus provides an arrangement restraining bipolar transistor type behavior to stabilize saturation current and to provide a TFT that can improve reliability.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: September 16, 2003
    Assignee: Seiko Epson Corporation
    Inventors: Ichio Yudasaka, Mitsutoshi Miyasaka, Piero Migliorato
  • Patent number: 6621920
    Abstract: A print pattern recognition apparatus includes a storage unit which stores a plurality of signal waveform data, which is extracted according to a predetermined condition from standard read signal waveform data and which is associated with a plurality of corresponding standard MICR characters, a detector unit for reading the MICR characters printed on a recording medium to output read signal data, a comparator unit for comparing the read signal data output from the detector unit with the signal waveform data stored in the storage unit, and a recognition unit for recognizing the characters and symbols printed on the recording medium in accordance with a comparison result provided by the comparator unit.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: September 16, 2003
    Assignee: Seiko Epson Corporation
    Inventor: Toshiaki Koike
  • Patent number: 6621488
    Abstract: A single-plate modulation panel comprises, for each pixel, a drive signal storage section for storing the drive signals corresponding to three colors used during the individual modulation of three-color illumination light; a color selection section for selecting one of the drive signals for the three colors stored in the drive signal storage section; and a modulation-executing section for performing modulation in accordance with the drive signals selected by the color selection section. Three light sources are controlled such that the single-plate modulation panel is illuminated with three-color illumination light in a recurring fashion one color at a time. In addition, the color selection section is controlled such that one of the drive signals corresponding to the three colors stored in the drive signal storage section is applied to the modulation-executing section while being switched in synchronism with the lighting timing of three-color illumination light.
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: September 16, 2003
    Assignee: Seiko Epson Corporation
    Inventors: Kesatoshi Takeuchi, Takahiro Sagawa
  • Patent number: 6620637
    Abstract: In a semiconductor analysis method in accordance with the present invention, a semiconductor integrated circuit defining an object to be measured is put in an operating state, a laser beam is irradiated on the object to be measured, scattered light of the irradiated laser beam scattered on the object to be measured is spectroscopically separated by a Raman spectroscopy apparatus, amounts of shifts in Raman spectra appearing due to the Raman effect are calculated, temperature of minute areas of the object to be measured is calculated based on the relation between the temperature obtained in advance and the amounts of frequency shifts, and the defective location that is generating heat is detected based on the temperature.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: September 16, 2003
    Assignee: Seiko Epson Corporation
    Inventor: Takafumi Noda
  • Patent number: 6621172
    Abstract: A first semiconductor chip is mounted on a substrate on which an interconnect pattern is formed, and a surface of the first semiconductor chip having electrodes faces the substrate. A second semiconductor chip is mounted on the first semiconductor chip. Electrodes of the second semiconductor chip are electrically connected to the interconnect pattern by wires. A first resin is provided between the first semiconductor chip and the substrate, and a second resin which differs from the first resin seals the first and second semiconductor chips.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: September 16, 2003
    Assignee: Seiko Epson Corporation
    Inventors: Hirohisa Nakayama, Jun Taniguchi, Takashi Abe, Toshinori Nakayama
  • Patent number: 6619777
    Abstract: A driving signal generation unit generates a plurality of kinds of driving pulses and a minute vibration pulse to be applied to a pressure generation element so as to finely vibrate a meniscus of liquid. A pulse generation unit generates the minute vibration pulse and the driving pulses by selecting a part of the driving signal. The driving signal includes a plurality of waveform elements used to generate the driving pulses and a connection element used to connect the waveform elements between different voltage levels and not used to generate the driving pulses. The pulse generation unit generates the minute vibration pulse by a combination of at least a part of the waveform elements and at least a part of the connection element. A plurality of driving pulses for ejecting a plurality of kinds of ink drops and a minute vibration pulse for causing minute vibrations to a meniscus of liquid can be efficiently put in a driving signal of one driving period.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: September 16, 2003
    Assignee: Seiko Epson Corporation
    Inventor: Junhua Chang
  • Patent number: 6619800
    Abstract: A projector includes an illumination system for emitting illumination light, an electro-optical device for modulating light from the illumination system according to image information, and a projection'system for projecting a modulated light beam obtained by the electro-optical device. The electro-optical device has a polarizer on at least one of the light incident side and the light emitting side, and the polarizer is attached to a flexible and transmissive plate material that bends in response to changes in shape of the polarizer. This makes it possible to reduce unevenness in brightness and color of images to be projected and displayed.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: September 16, 2003
    Assignee: Seiko Epson Corporation
    Inventors: Takeshi Takezawa, Nobuo Watanabe, Hidemasa Yamakawa
  • Patent number: 6619793
    Abstract: A soft alumite is produced by forming an oxide film on the surface of an aluminum substrate. Printing is performed on a porous layer formed on the surface of the soft alumite while heating the soft alumite. Alternatively, printing is performed with a dye-based ink on a porous layer formed on the surface of the soft alumite.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: September 16, 2003
    Assignee: Seiko Epson Corporation
    Inventors: Yasunori Yamazaki, Shoji Takei
  • Patent number: 6621542
    Abstract: An electro-optic panel 100 has a first substrate 10 and a second substrate 20 opposing each other. The first substrate 10 has a protruding portion 12 formed so that an edge portion of the first substrate 10 protrudes toward the outside from an edge portion of the second substrate 20. The surface of the first substrate 10 opposing the second substrate 20 is formed to have an irregular surface 14. On the irregular surface 14 in the protruding portion 12 of the first substrate 10, a planarized layer is formed, and on the planarized layer 60, the mark (alignment mark 70) is formed. The electro-optic device includes the electro-optic panel 100. The electronic apparatus includes the electro-optic device.
    Type: Grant
    Filed: October 26, 2000
    Date of Patent: September 16, 2003
    Assignee: Seiko Epson Corporation
    Inventor: Yasuhito Aruga
  • Patent number: 6619778
    Abstract: A control circuit 200 for a carriage motor 60 has a speed differential generation circuit 206. The speed differential generation circuit sets a speed differential &Dgr;V at a constant value during a period P1, and the constant speed differential &Dgr;V is inputted to three operation elements 210, 212 and 214. Also, the speed differential generation element 206 uses the actual differential (Vt−Vc) as the speed differential &Dgr;V after the period P1.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: September 16, 2003
    Assignee: Seiko Epson Corporation
    Inventor: Hitoshi Igarashi
  • Patent number: 6621610
    Abstract: The present invention relates to a light deflective optical system without necessity of use of a plane mirror of which width is narrow, which can prevent variation in pitch of scan lines even with projecting or sinking of a deflective reflecting facet and can prevent a deflective light beam from twisting. The light deflective optical system has at least one deflective reflecting facet 11, capable of being revolved or swiveled about the rotational axis 12, and two stationary plane mirrors 13, 14, disposed to face the deflective reflecting facet 11, wherein a light beam a1 incident on and thus reflected at the deflective reflecting facet 11 is reflected successively at the stationary plane mirrors 13, 14 and this reflected light beam a3 is again incident on and reflected at the deflective reflecting facet 11.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: September 16, 2003
    Assignee: Seiko Epson Corporation
    Inventors: Takeshi Sowa, Nozomu Inoue, Takashi Suzuki
  • Patent number: 6621991
    Abstract: A development bias calculation and an electrifying bias calculation are executed in this order. In the development bias calculation, a plurality of toner images are formed as first patch images while changing the development bias. An optimal development bias, which is necessary to obtain the target density, is determined based on densities of the first patch images. In the electrifying bias calculation, toner images are formed as second patch images while changing the electrifying bias with the development bias fixed to the optimal development bias. An optimal electrifying bias, which is necessary to obtain the target density, is determined based on densities of the second patch images.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: September 16, 2003
    Assignee: Seiko Epson Corporation
    Inventors: Hiroshi Nakazato, Takashi Hama
  • Patent number: 6620282
    Abstract: A method and apparatus for solid bonding without using a bonding agent are provided. A surface of metal, glass, or other bond members 16a and 16b is fluorinated by exposure to a mixture of HF gas from a HF gas supply unit 24 and water vapor from a vapor generator 26 in a fluorination process section 12. The bond members 16a and 16b are then placed in contact at the fluorinated surface on table 36 in bonding process section 14. Argon is then introduced to bonding chamber 34. Pressure is then applied to the first bond member 16a and second bond member 16b by a cylinder 46, and heated to below the melting point by a heater 48, to bond the first and second bond members together.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: September 16, 2003
    Assignee: Seiko Epson Corporation
    Inventors: Yoshiaki Mori, Yasutsugu Aoki, Takuya Miyakawa
  • Patent number: 6619785
    Abstract: An electrode connecting method, a narrow-pitch connector, a pitch converter, a micro-machine, a piezoelectric actuator, an electrostatic actuator, an ink jet head, an ink jet printer, a liquid crystal device and electronic equipment, in which even if connecting subjects having different thermal expansion coefficients are connected with each other, the positional deviation between the terminal electrodes of the connecting subjects can be restrained. After terminal electrodes (28) of a connecting subject (26) are put on top of terminal electrodes (30) of a narrow-pitch connector (20), thermal compression bonding is performed on these terminal electrodes so that the terminal electrodes are connected with each other.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: September 16, 2003
    Assignee: Seiko Epson Corporation
    Inventor: Eiichi Sato