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Hitoshi Yabusaki

from Londonderry, NH
Age ~68
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Also known as:
Hitoshi Yabunski, Hitoshi I
Phone and address:
67 Bartley Hill Rd, Londonderry, NH 03053
(603) 425-1216
Related to:
Miyuki Yabusaki, 40
Connected to:
Alex Yabut, 65Anita I Yabut, 57Annie Yabut, 61Daniel R Yabut, 48Erna C Yabut, 56Ian Yabut, 28Jayson K Yabut, 54Jennifer A Yabut, 46Jerome F Yabut, 46Louie F Yabut, 42

Hitoshi Yabusaki Phones & Addresses

  • 67 Bartley Hill Rd, Londonderry, NH 03053 (603) 425-1216
  • 6 Mohave Rd, Worcester, MA 01606
  • 3 Oakmont Dr, Concord, NH 03301 (603) 229-4527
  • Shrewsbury, MA
  • 67 Bartley Hill Rd, Londonderry, NH 03053

Work

Position: Director

Education

Degree: Associate degree or higher

Resumes

Resumes

Hitoshi Yabusaki Photo 1

Director

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Location:
67 Bartley Hill Rd, Londonderry, NH 03053
Work:

Director

Publications

Us Patents

Motor Controller

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US Patent:
7590334, Sep 15, 2009
Filed:
Aug 8, 2007
Appl. No.:
11/835721
Inventors:
Hitoshi Yabusaki - Londonderry NH, US
Alejandro G. Milesi - Ciudad de Buenos Aires, AR
Shaun D. Milano - Chichester NH, US
Nevenka Kozomora - Manchester NH, US
Michael C. Doogue - Manchester NH, US
Assignee:
Allegro Microsystems, Inc. - Worcester MA
International Classification:
H02P 5/06
H02P 6/20
US Classification:
388811, 31840006, 31840017, 318599
Abstract:
In one aspect, a control circuit to control a speed of a motor includes a PWM oscillator configured to generate a PWM output signal having a duty cycle. The speed of the motor is controlled by the PWM output signal to be proportional to the duty cycle. The control circuit also includes a duty cycle control circuit responsive to a duty cycle selection signal and coupled to the PWM oscillator. The duty cycle control circuit is configured to compare a voltage reference and a supply voltage. The duty cycle control circuit controls the duty cycle of the PWM output signal to be inversely proportional to the supply voltage.

Rotation Sensor

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US Patent:
8164324, Apr 24, 2012
Filed:
Jul 17, 2009
Appl. No.:
12/505057
Inventors:
Takashi Hara - Ichinomiya, JP
Hidenobu Muramatsu - Kariya, JP
Glenn A. Forrest - Bow NH, US
Hitoshi Yabusaki - Londonderry NH, US
Naota Nakayama - Derry NH, US
Assignee:
Aisin Seiki Kabushiki Kaisha - Aichi-ken
Allegro Microsystems, Inc. - Worcester MA
International Classification:
G01P 3/48
US Classification:
324166, 324160, 324167
Abstract:
A rotation sensor includes a detecting portion, a rotational state determining portion and a pulse generating portion. The detecting portion detects a rotation of a rotational member and outputs a detection signal. The rotational state determining portion determines a rotational state of the rotational member on the basis of the detection signal in a predetermined period. The pulse generating portion generates and outputs a first pulse and a second pulse, of which waveforms differ from each other, in response to a rotational direction of the rotational member after the predetermined period. The pulse generating portion further generates and outputs a third pulse regardless of the rotational state of the rotational member in the predetermined period.

Methods And Apparatus For An Angle Sensor For A Through Shaft

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US Patent:
20100156397, Jun 24, 2010
Filed:
Dec 23, 2008
Appl. No.:
12/342279
Inventors:
Hitoshi Yabusaki - Londonderry NH, US
Monica J. Thomas - Farmington ME, US
International Classification:
G01B 7/30
US Classification:
3242072
Abstract:
A sensor minimizes effects of sensor element misalignment with respect to a magnet. In one embodiment, a sensor comprises a magnet, first, second, and third sensor elements positioned in relation to the magnet, and a signal processing module to process output signals from the first, second, and third sensor elements and generate first and second signals for minimizing effects of positional misalignment of the first, second, and third sensor elements with respect to the magnet by maximizing a quadrature relationship of the first and second signals.

Detection Of Passing Magnetic Articles While Periodically Adapting Detection Threshold

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US Patent:
59173203, Jun 29, 1999
Filed:
Apr 28, 1997
Appl. No.:
8/847703
Inventors:
P. Karl Scheller - Rochester NH
Ravi Vig - Bow NH
Jay M. Towne - Newbury NH
Hitoshi Yabusaki - Worcester MA
Assignee:
Allegro MicroSystems, Inc. - Worcester MA
International Classification:
G01P 348
G01P 3489
G01B 714
US Classification:
324166
Abstract:
A method for detection of passing magnetic articles which includes an initial step of sensing an ambient magnetic field and generating a voltage, Vsig, proportional to the magnetic field. A threshold voltage is generated as a percentage of the peak-to-peak voltage of Vsig. The method further includes the step of generating a proximity detector output voltage that becomes one binary level when Vsig rises to exceed the threshold voltage and another binary level when Vsig falls to below the threshold voltage. The threshold voltage is periodically updated to remain the percentage, within a predetermined tolerance, of the peak-to-peak voltage of Vsig in response to changes that may occur in the peak voltages of Vsig. In one embodiment, the threshold voltage is at a first level corresponding to a first percentage of the peak-to-peak voltage of Vsig when Vsig exceeds the threshold voltage and is at a second level corresponding to a second percentage of the peak-to-peak voltage of Vsig when Vsig is less than the threshold voltage.
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Hitoshi Yabusaki from Londonderry, NH, age ~68 Get Report