Qiang Qiang Fu

US Patent:

6341009, Jan 22, 2002

Filed:

Feb 24, 2000

Appl. No.:

09/512580

Inventors:

John OConnor - Commack NY
Qiang Fu - Port Jefferson Station NY

Assignee:

Quantronix Corporation - East Setauket NY

International Classification:

G03B 2754

US Classification:

355 67, 355 53, 355 77, 25055945

Abstract:

A system and method for photolithographic mask repair. The system includes a structure for supporting a mask to be operated on, a laser emitting device for effecting mask repair, a light source adjacent the support structure for selected illumination of the mask, a laser processor for effecting sequential angular manipulation of a laser beam projecting from the laser emitting device, a computer device for controlling the sequential angular manipulation so as to capture a generally complete waveform of the beam, and a microscope for multi-aspect viewing of the mask during navigation of the beam about the mask. The computer device, simultaneously with manipulation of the beam, effecting fine motion control of the beam, controlled movement of the motorized aperture for effecting the sequential angular manipulation, controlled support structure movement, and image data processing.

US Patent:

6801318, Oct 5, 2004

Filed:

Apr 30, 2002

Appl. No.:

10/136655

Inventors:

Qiang Fu - Forest Hills NY
Sergei Petrovich Nikitin - East Setauket NY
Anatoly Viktorovich Masalov - Troitzk, RU

Assignee:

Excel/Quantronix, Inc. - East Setauket NY

International Classification:

G01B 902

US Classification:

356450, 356456

Abstract:

An apparatus and method to measure optical intensity and phase of one or several light pulses is described. The apparatus combines a spectrally resolved interferometric asymmetric single-shot optical autocorrelator and imaging spectrograph. The asymmetric design of the optical autocorrelator based on second harmonic generation eliminates time-direction ambiguity, while a spectrally resolved interferometric pattern allows the performance of self-check and self-calibration of the apparatus and substantially improves convergence, robustness and reliability of the computational retrieval algorithm.

US Patent:

59433515, Aug 24, 1999

Filed:

Feb 2, 1998

Appl. No.:

9/017342

Inventors:

Fuzheng Zhou - Hicksville NY
Qiang Fu - Nesconset NY
Michael Maikowski - Commack NY

Assignee:

Excel/Quantronix, Inc. - Hauppauge NY

International Classification:

H01S 310

US Classification:

372 22

Abstract:

Intra-cavity and/or inter-cavity sub-resonators with dielectric coated mirrors have anti-reflection and high-reflection coatings to attain high efficiency third and higher order harmonics generation of laser radiation. Main-resonators and sub-resonators enhance the fundamental and harmonic oscillations, respectively, which result in high conversion efficiency of third harmonics and higher. Such improved lasing efficiency may be implemented in high power lasers for improved power performance to attain over 8 W of UV output power with a high repetition rate. The use of intra-cavity THG techniques provide high efficiency by using existing high intensities of the input fundamental frequencies available in the intra-cavity region of the laser to avoid damage to components of the laser, such as the laser crystal. The THG utilizes a double-pass and/or multi-pass arrangement, which results in about a 60% increase in output power compared to a single-pass configuration. Also, blocking of UV energy generated in a return pass is performed to eliminate damage by the UV to the components in the main cavity.

US Patent:

20140276583, Sep 18, 2014

Filed:

Mar 12, 2014

Appl. No.:

14/206382

Inventors:

- Whippany NJ, US
Igor Gofman - Croton-on-Hudson NY, US
Mu Wu - Hopewell Junction NY, US
James Johnson - Danbury CT, US
Qiang Fu - Briarcliff Manor NY, US
Simin Yao - Boonton Twp. NJ, US

International Classification:

A61M 5/315

US Classification:

604506, 604207

Abstract:

An injection device, which can be, e.g., an insulin pen, can capture and transmit injection and/or medicament information to another device, such as, e.g., a blood glucose meter. The injection and medicament information can include, e.g., time and date of injection, type of medicament injected, and dosage amount. The injection device can include a dial cap that can be rotated to select a dosage amount to be injected. In some embodiments, the dial cap can include a microcontroller with transmitter, a Hall effect sensor, and a ring magnet. In some embodiments, the injection device can include a medicament cartridge with a 1-wire EEPROM, which can have medicament information stored therein. Methods of operating an injection device are also provided, as are other aspects.