Patents by Inventor Kuo-Tong Ma
Kuo-Tong Ma 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).
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Publication number: 20100051457Abstract: A planar integrated ion sensor has a planar substrate, a working electrode assembly, a reference electrode assembly and an exchange junction. The working electrode assembly is mounted on one surface of the planar substrate and has an ion selective electrode, a working conductor electrically coupled with the ion selective electrode and a working barrier partially covering the ion selective electrode and the working conductor. The reference electrode assembly has a reference electrode, a reference conductor electrically coupled with the reference electrode, a reference barrier partially covering the reference electrode and the reference conductor and a hood with an inner space filled with electrolyte. The exchange junction allows communication between a liquid sample and the electrolyte in the inner space of the hood. The present invention has a decreased volume, is easily portable and is convenient for an operator to determine ion concentration in the liquid sample without incorporating other device.Type: ApplicationFiled: August 26, 2009Publication date: March 4, 2010Applicant: MIDDLELAND SENSING TECHNOLOGY INC.Inventors: Hsiung HSIAO, Kuo-Tong MA
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Patent number: 7390076Abstract: A method of sealing a nozzle. First, a device comprising a chamber, a nozzle, and a nozzle plate is provided, wherein the nozzle plate is installed on the chamber and the nozzle passes through the nozzle plate and connects the chamber. The chamber is then filled with ink. Residual ink on the nozzle plate is then removed by water. After that the nozzle plate is dried, a solution is then coated on the nozzle plate, wherein the solution has higher surface tension than the ink and has smaller contact angle with the nozzle plate than the water. Next, the nozzle plate is dried. Finally, a flexible material is bonded on the nozzle plate to seal the nozzle.Type: GrantFiled: December 9, 2005Date of Patent: June 24, 2008Assignee: Qisda CorporationInventors: Kuo-Tong Ma, Yu-Chang Shen
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Patent number: 7336368Abstract: An optical detector measuring a movement of an object in a space on a measurement axis comprises a light source, a reflective portion, a detection unit and a converting unit. The light source comprises a resonance chamber, the light source emitting a laser beam toward the object, the laser beam contacting the object and generating a first scattering beam and a reflection beam, wherein a part of the first scattering beam enters the resonance chamber. The reflective portion reflects the reflection beam toward the object, the reflection beam re-contacting the object and generating a second scattering beam and a sub-reflection beam, wherein a part of the second scattering beam and the sub-reflection beam enter the resonance chamber. The detection unit measures an optical-electrical variation in the resonance chamber to generate an electric signal. The converting unit converts the electric signal to a movement on the measurement axis in the space.Type: GrantFiled: January 10, 2006Date of Patent: February 26, 2008Assignee: Darfon Electronics Corp.Inventors: Pin-Chien Liao, Kuo-Tong Ma
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Patent number: 7222945Abstract: A fluid ejection apparatus. The fluid ejection apparatus includes a chamber, a manifold, an orifice, a first bubble generating element and a second bubble generating element. The chamber contains fluid. The manifold is connected to the chamber. The fluid flows into the chamber at a first direction through the manifold. The orifice is connected to the chamber. The first bubble generating element is disposed above the chamber and close to the orifice to generate a first bubble. The first bubble generating element is substantially parallel to the first direction. The second bubble generating element is disposed above the chamber and is substantially parallel to the first direction to generate a second bubble. The second bubble generating element is close to the orifice and opposite to the first bubble generating element. The fluid in the chamber is ejected via the orifice by the first and second bubbles.Type: GrantFiled: June 18, 2004Date of Patent: May 29, 2007Assignee: BENQ CorporationInventors: Fan-Chung Tseng, Kuo-Tong Ma, In-Yao Lee, Te-Jung Hsu
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Publication number: 20070024673Abstract: A fluid ejection apparatus. The fluid ejection apparatus includes a chamber, a manifold, an orifice, a first bubble generating element and a second bubble generating element. The chamber contains fluid. The manifold is connected to the chamber. The fluid flows into the chamber at a first direction through the manifold. The orifice is connected to the chamber. The first bubble generating element is disposed above the chamber and close to the orifice to generate a first bubble. The first bubble generating element is substantially parallel to the first direction. The second bubble generating element is disposed above the chamber and is substantially parallel to the first direction to generate a second bubble. The second bubble generating element is close to the orifice and opposite to the first bubble generating element. The fluid in the chamber is ejected via the orifice by the first and second bubbles.Type: ApplicationFiled: September 28, 2006Publication date: February 1, 2007Applicant: BENQ CORPORATIONInventors: Fan-Chung Tseng, Kuo-Tong Ma, In-Yao Lee, Te-Jung Hsu
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Publication number: 20060170731Abstract: A fluid injection device. The fluid injection device comprises a substrate, a chamber formed in the substrate, a structural layer covering the substrate and the chamber, at least one nozzle through the structural layer and connecting the chamber, an opening through the structural layer and connecting the terminal of the chamber, wherein an outlet is formed at the connecting region therebetween. A method of fabricating the fluid injection device is also disclosed.Type: ApplicationFiled: December 9, 2005Publication date: August 3, 2006Applicant: BENQ CORPORATIONInventors: Kuo-Tong Ma, In-Yao Lee, Hung-Sheng Hu
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Publication number: 20060139404Abstract: An opening detection device. The device includes a substrate, a structural layer formed on the substrate, and an opening detection circuit above or below the structural layer comprising a conductor situated where an opening is subsequently formed and a conductive wire connecting the conductor. A method of detecting an opening is also disclosed.Type: ApplicationFiled: December 9, 2005Publication date: June 29, 2006Applicant: BENQ CORPORATIONInventor: Kuo-Tong Ma
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Publication number: 20060139403Abstract: A method of sealing a nozzle. First, a device comprising a chamber, a nozzle, and a nozzle plate is provided, wherein the nozzle plate is installed on the chamber and the nozzle passes through the nozzle plate and connects the chamber. The chamber is then filled with ink. Residual ink on the nozzle plate is then removed by water. After that the nozzle plate is dried, a solution is then coated on the nozzle plate, wherein the solution has higher surface tension than the ink and has smaller contact angle with the nozzle plate than the water. Next, the nozzle plate is dried. Finally, a flexible material is bonded on the nozzle plate to seal the nozzle.Type: ApplicationFiled: December 9, 2005Publication date: June 29, 2006Applicant: BENQ CORPORATIONInventors: Kuo-Tong Ma, Yu-Chang Shen
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Publication number: 20060097138Abstract: A cursor control method for an electronic device. The electronic device comprises a detecting window and a cursor shown on a monitor. An object is disposed on the detecting window. A laser diode with a laser cavity is provided to generate a plurality of laser beams with different polarization in a plurality of continuous time periods. A first and a second laser beams are guided to the detecting window, to impinge on the object along first and second incident axes, which reflects the first and second laser beams causing them to re-enter the laser cavity. A converting unit converts the electric variation of laser cavity caused by a self-mixing effect and Doppler periods into first and second electric signals to determine the displacement of the cursor.Type: ApplicationFiled: November 9, 2005Publication date: May 11, 2006Applicant: DARFON ELECTRONICS CORP.Inventors: Kuo-Tong Ma, Pin-Chien Liao
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Publication number: 20040263576Abstract: A fluid ejection apparatus. The fluid ejection apparatus includes a chamber, a manifold, an orifice, a first bubble generating element and a second bubble generating element. The chamber contains fluid. The manifold is connected to the chamber. The fluid flows into the chamber at a first direction through the manifold. The orifice is connected to the chamber. The first bubble generating element is disposed above the chamber and close to the orifice to generate a first bubble. The first bubble generating element is substantially parallel to the first direction. The second bubble generating element is disposed above the chamber and is substantially parallel to the first direction to generate a second bubble. The second bubble generating element is close to the orifice and opposite to the first bubble generating element. The fluid in the chamber is ejected via the orifice by the first and second bubbles.Type: ApplicationFiled: June 18, 2004Publication date: December 30, 2004Applicant: BENQ CORPORATIONInventors: Fan-Chung Tseng, Kuo-Tong Ma, In-Yao Lee, Te-Jung Hsu
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Publication number: 20040235430Abstract: A mobile phone and a scent dispenser thereof. The scent dispenser includes a body and a scent dispersing device. The body includes a tank and a channel. The tank stores a scent in liquid medium therein. The channel communicates the tank and the exterior, and includes a hydrophobic wall for preventing the scent in the tank from flowing to the exterior. The scent dispersing device is disposed in the body, and evaporates the scent so that the scent is dispersed to the exterior. The mobile phone includes a housing, the scent dispenser, and a controller. The scent dispenser and the controller are disposed in the housing, and the controller controls the scent dispersing device in the scent dispenser.Type: ApplicationFiled: May 17, 2004Publication date: November 25, 2004Applicant: BENQ CORPORATIONInventors: Kuo-Tong Ma, Ming-Chung Peng
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Publication number: 20040165048Abstract: A method for filling an ink into an ink cartridge. A filter or an ink passage is treated with a surfactant to increase its hydrophilicity. Therefore, during ink filling, the ink can pass through the filter smoothly or air in the ink passage can be purged without any external force such as a vacuum, thus preventing cracks in the nozzle on the printhead chip.Type: ApplicationFiled: February 20, 2004Publication date: August 26, 2004Applicant: BENQ CORPORATIONInventors: Kuo-Tong Ma, In-Shan Sir, Yuh-Ming Hsieh, Fan-Chung Tseng