Patents by Inventor Hajime Ito

Hajime Ito 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: 7377132
    Abstract: A conduit for molten glass, a molten glass degassing method and a sub-atmospheric apparatus are provided, which are able to produce homogenous and good quality glass at low cost. A conduit for molten glass, which is capable of flowing molten glass in a horizontal direction, and to which vertical pipes are connectable, is disposed in a substantially horizontal direction. The conduit for molten glass can increase the area of a free surface of the molten glass by setting a width W at a larger value than a height H in cross-section and having an outline in cross-section comprising a convex curve. When the conduit for molten glass thus configured is used as a sub-atmospheric apparatus, it is possible to degas the molten glass effectively. Additionally, it is possible to have a sufficient strength since the convex curve forming the cross-section is elliptical. Further, it is possible to reduce costs by decreasing the amount of metal required for forming the cross-section.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: May 27, 2008
    Assignee: Asahi Glass Company, Limited
    Inventors: Kazuo Hamashima, Yasuharu Hirahara, Hajime Ito
  • Publication number: 20080108634
    Abstract: Specific phenylalanine derivatives and analogues thereof have an antagonistic activity to ?4 integrin. They are used as therapeutic agents for various diseases concerning ?4 integrin.
    Type: Application
    Filed: December 21, 2007
    Publication date: May 8, 2008
    Applicant: Ajinomoto Co., Inc.
    Inventors: Kazuyuki SAGI, Tatsuya Okuzumi, Tatsuhiro Yamada, Shunsuke Kageyama, Yoichiro Shima, Tadakiyo Nakagawa, Munetaka Tokumasu, Masayuki Sugiki, Hajime Ito, Itsuya Tanabe, Tamotsu Suzuki, Akira Nakayama, Kazuyuki Ubukata, Kenji Shinkai, Yasuhiro Tanaka, Misato Noguchi, Ayatoshi Andou, Yoriko Yamamoto, Noriyasu Kataoka, Koichi Fujita
  • Patent number: 7345049
    Abstract: Specific phenylalanine derivatives and analogues thereof have an antagonistic activity to ?4 integrin. They are used as therapeutic agents for various diseases concerning ?4 integrin.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: March 18, 2008
    Assignee: Ajinomoto Co., Inc.
    Inventors: Kazuyuki Sagi, Tatsuya Okuzumi, Tatsuhiro Yamada, Shunsuke Kageyama, Yoichiro Shima, Tadakiyo Nakagawa, Munetaka Tokumasu, Masayuki Sugiki, Hajime Ito, Itsuya Tanabe, Tamotsu Suzuki, Akira Nakayama, Kazuyuki Ubukata, Kenji Shinkai, Yasuhiro Tanaka, Misato Noguchi, Ayatoshi Andou, Yoriko Yamamoto, Noriyasu Kataoka, Koichi Fujita
  • Patent number: 7312354
    Abstract: Provided are an adamantane derivative characterized by having a structure represented by Formula (I) and a process for producing an adamantane derivative in which n is 0 in Formula (I) described above, wherein an adamantane compound is reacted with a nitrile compound and then with acid halide or acid anhydride of (meth)acrylic acids.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: December 25, 2007
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Hajime Ito, Shinji Tanaka
  • Patent number: 7292021
    Abstract: In an anomaly detector that detects an abnormal condition of an oscillation signal of a circuit such as a vibratory sensing circuit, the oscillation signal, having AC and DC components, is converted to a pair of first and second signals of either opposite-polarity DC amplitudes or opposite-phase alternating amplitudes. The first and second signals are combined to cancel the AC component of the oscillation signal to detect the DC component. The DC component is then compared with the upper and lower thresholds of a decision range to produce an alarm if the DC component goes outside the decision range. In one embodiment, the first and second signals are produced by detecting positive and negative peak values of the oscillation signal at intervals. In a second embodiment, the first signal is produced by high-pass filtering the oscillation signal as a replica of the AC component and the second signal is the oscillation signal itself.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: November 6, 2007
    Assignee: Denso Corporation
    Inventors: Takao Tsuruhara, Hajime Ito, Shunji Mase
  • Publication number: 20070222193
    Abstract: A physical quantity detector includes a pressure-responsive bridge circuit that outputs a detection voltage including a voltage component corresponding to atmospheric pressure and a voltage component corresponding to a change quantity from the atmospheric pressure, a filter that eliminates the voltage component corresponding to the change quantity from the atmospheric pressure, and a variable gain unit that amplifies a voltage difference between the detection voltage outputted from the bridge circuit and the filter output voltage that is free form the change quantity from the atmospheric pressure.
    Type: Application
    Filed: March 22, 2007
    Publication date: September 27, 2007
    Applicant: DENSO CORPORATION
    Inventor: Hajime Ito
  • Patent number: 7265616
    Abstract: In a charge amplifier, an operational amplifier is provided. The operational amplifier has an inverting input terminal, a non-inverting input terminal, and an output terminal. An adjustable feedback resistor element is provide to be connected between the inverting terminal and the output terminal. A resistance adjusting circuit is provided to be electrically connected to the adjustable feedback resistor element. The resistance adjusting circuit adjusts the resistance of the adjustable feedback resistor element to a first resistance during a first predetermined period after power-on. The resistance adjusting circuit also adjusts the resistance of the adjustable feedback resistor element to a second resistance after the first predetermined period has elapsed. The second resistance is higher than the first resistance.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: September 4, 2007
    Assignee: DENSO CORPORATION
    Inventors: Takao Tsuruhata, Hajime Ito
  • Publication number: 20070148108
    Abstract: A compound represented by the following general formula (I) or a salt thereof: wherein R1 represents a glycosyl group, a phosphate group, or a cyclic phosphate group bound to R2; R2 represents —CH2OH, —CHO, —CH2NH2, —CH2-amino acid residue, or —CH2—OPO2H; and R3 represents hydrogen atom, or —PO3H2, and a composition for cosmetics, medicaments, foodstuffs, and/or feeds containing the aforementioned compound or a salt thereof.
    Type: Application
    Filed: September 30, 2004
    Publication date: June 28, 2007
    Inventors: Keiji Sakamoto, Koichi Wada, Hajime Ito, Nobuhiro Take, Hiroshi Morimoto, Fumio Maniwa, Yukiko Shimmoto
  • Publication number: 20070128761
    Abstract: A manufacturing method includes the steps of disposing a base substance for a solar cell element inside a first chamber and then supplying a first gas to etch one principal surface of the base substance, thereby roughening the one principal surface while attaching an etch residue thereto; and disposing the base substance inside a second chamber and then supplying a second gas having lower reactivity than the first gas to convert the second gas into a plasma state, thereby removing the etch residue remaining on the one principal surface.
    Type: Application
    Filed: November 28, 2006
    Publication date: June 7, 2007
    Applicant: KYOCERA CORPORATION
    Inventors: Hiroto OWADA, Hajime ITO
  • Patent number: 7216538
    Abstract: A vibratory angular rate sensor comprises a vibrator having a vibrating element arranged to oscillate along a first direction, the element being arranged to further oscillate along a second direction perpendicular to the first direction when subjected to angular rate about a third direction perpendicular to the first and second directions. The vibrating element is caused to oscillate at a predetermined frequency along the first direction. An oscillation detector generates a voltage representing oscillations of the vibrating element along the second direction. A first synchronous detector synchronously detects a primary frequency component of the generated voltage using clock pulses of the predetermined frequency to produce an output signal. A second synchronous detector synchronously detects an odd-numbered harmonic of the generated voltage using clock pulses of the odd-numbered harmonic frequency.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: May 15, 2007
    Assignee: Denso Corporation
    Inventors: Hajime Ito, Kenichi Ao
  • Patent number: 7197930
    Abstract: The gyro sensor uses a clock signal as a timing signal or synchronous signal for reading various data stored in a built-in memory for its yaw rate sensing operation. The gyro sensor is configured to use, as such a clock signal, the self-excited oscillation signal being applied to the vibrator of the gyro sensor as a vibrator drive signal.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: April 3, 2007
    Assignee: Denso Corporation
    Inventors: Mikio Sugiki, Yuji Kutsuna, Hajime Ito, Takao Tsuruhara
  • Publication number: 20070041135
    Abstract: A sensor circuit includes an AC component pickup circuit and first and second adder circuits or first and second high-pass filters, and specifies a range of normal voltages by an upper-limit voltage formed by adding an upper-limit threshold value to the AC component in the input voltage and by a lower-limit voltage formed by adding a lower-limit threshold value to the AC component in the input voltage. An abnormal offset voltage is detected by judging whether the output voltage of an inverting amplifier circuit is lying in the range of normal voltages.
    Type: Application
    Filed: August 8, 2006
    Publication date: February 22, 2007
    Applicant: DENSO CORPORATION
    Inventors: Hajime Ito, Shunji Mase, Takao Tsuruhara
  • Publication number: 20060167302
    Abstract: Provided are an adamantane derivative characterized by having a structure represented by Formula (I) and a process for producing an adamantane derivative in which n is 0 in Formula (I) described above, wherein an adamantane compound is reacted with a nitrile compound and then with acid halide or acid anhydride of (meth)acrylic acids. The adamantane derivative characterized by having a structure represented by Formula (I) is a novel adamantane derivative which is useful as a monomer for functional resins such as a photosensitive resin in the photolithograpy field, and it can efficiently be produced by the production process described above.
    Type: Application
    Filed: October 7, 2004
    Publication date: July 27, 2006
    Applicant: Idemitsu Kosan Co., Ltd
    Inventors: Hajime Ito, Tanaka Shinji
  • Publication number: 20060123908
    Abstract: The electrostatically-driven/capacitance-detection type gyro sensor has a sensing element including a movable part, the sensitivity of the sensing element and accordingly the sensitivity of a sensor output signal thereof being kept unchanged by controlling the amplitude of displacement or displacing velocity of the movable part and by using a reference voltage independent of variation of a power supply voltage, even there occurs a change in the vibrating state of the movable part due to temperature change or secular variation.
    Type: Application
    Filed: December 9, 2005
    Publication date: June 15, 2006
    Applicant: DENSO CORPORATION
    Inventor: Hajime Ito
  • Publication number: 20060117850
    Abstract: The gyro sensor uses a clock signal as a timing signal or synchronous signal for reading various data stored in a built-in memory for its yaw rate sensing operation. The gyro sensor is configured to use, as such a clock signal, the self-excited oscillation signal being applied to the vibrator of the gyro sensor as a vibrator drive signal.
    Type: Application
    Filed: December 1, 2005
    Publication date: June 8, 2006
    Applicant: DENSO CORPORATION
    Inventors: Mikio Sugiki, Yuji Kutsuna, Hajime Ito, Takao Tsuruhara
  • Publication number: 20060087370
    Abstract: In a charge amplifier, an operational amplifier is provided. The operational amplifier has an inverting input terminal, a non-inverting input terminal, and an output terminal. An adjustable feedback resistor element is provide to be connected between the inverting terminal and the output terminal. A resistance adjusting circuit is provided to be electrically connected to the adjustable feedback resistor element. The resistance adjusting circuit adjusts the resistance of the adjustable feedback resistor element to a first resistance during a first predetermined period after power-on. The resistance adjusting circuit also adjusts the resistance of the adjustable feedback resistor element to a second resistance after the first predetermined period has elapsed. The second resistance is higher than the first resistance.
    Type: Application
    Filed: October 20, 2005
    Publication date: April 27, 2006
    Applicant: DENSO CORPORATION
    Inventors: Takao Tsuruhara, Hajime Ito
  • Publication number: 20060077013
    Abstract: In an anomaly detector that detects an abnormal condition of an oscillation signal of a circuit such as a vibratory sensing circuit, the oscillation signal, having AC and DC components, is converted to a pair of first and second signals of either opposite-polarity DC amplitudes or opposite-phase alternating amplitudes. The first and second signals are combined to cancel the AC component of the oscillation signal to detect the DC component. The DC component is then compared with the upper and lower thresholds of a decision range to produce an alarm if the DC component goes outside the decision range. In one embodiment, the first and second signals are produced by detecting positive and negative peak values of the oscillation signal at intervals. In a second embodiment, the first signal is produced by high-pass filtering the oscillation signal as a replica of the AC component and the second signal is the oscillation signal itself.
    Type: Application
    Filed: October 7, 2005
    Publication date: April 13, 2006
    Applicant: DENSO CORPORATION
    Inventors: Takao Tsuruhara, Hajime Ito, Shunji Mase
  • Patent number: 7000471
    Abstract: An angular velocity sensor device includes a switch (S1) for selecting a first or second driving signal mutually opposite in phase applied to driving electrodes (D1, D2) to oscillate a weight part (8) in a first direction. An adding circuit (29) adjusts the amplitude of the driving signal selected and adds it to a monitor signal reflecting the oscillating state of the weight part (8). A noise signal component appearing in the output signal of the adding circuit (29) is adjusted to a minimum and the output signal is supplied as a feedback signal to a self-oscillating circuit (27) for reducing the noise signal influence on the oscillating drive of the weight part.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: February 21, 2006
    Assignee: Denso Corporation
    Inventor: Hajime Ito
  • Publication number: 20060027019
    Abstract: A vibratory angular rate sensor comprises a vibrator having a vibrating element arranged to oscillate along a first direction, the element being arranged to further oscillate along a second direction perpendicular to the first direction when subjected to angular rate about a third direction perpendicular to the first and second directions. The vibrating element is caused to oscillate at a predetermined frequency along the first direction. An oscillation detector generates a voltage representing oscillations of the vibrating element along the second direction. A first synchronous detector synchronously detects a primary frequency component of the generated voltage using clock pulses of the predetermined frequency to produce an output signal. A second synchronous detector synchronously detects an odd-.numbered harmonic of the generated voltage using clock pulses of the odd-numbered harmonic frequency.
    Type: Application
    Filed: July 26, 2005
    Publication date: February 9, 2006
    Inventors: Hajime Ito, Kenichi Ao
  • Publication number: 20050274181
    Abstract: An angular rate sensor has a vibrator vibrating along a reference direction at a fixed frequency in response to a driving signal, and vibrating along a detecting direction perpendicular to the reference direction in accordance with an angular velocity given to the vibrator. A monitoring signal generator generates a monitoring signal having a waveform of the vibrator vibration along the reference direction. A clock signal generator generates, from the monitoring signal, a first clock signal and a second clock signal having a frequency identical with that of the first clock signal and a level change occurring at a time differing from that in the second clock signal. The first clock signal is used to maintain the vibrator vibration along the reference direction. An angular velocity detector detects the angular velocity from a waveform of the vibrator vibration along the detecting direction by using the second clock signal.
    Type: Application
    Filed: June 10, 2005
    Publication date: December 15, 2005
    Applicant: DENSO CORPORATION
    Inventors: Yuji Kutsuna, Hajime Ito