Patents by Inventor Tzu-Hsiang Yen
Tzu-Hsiang Yen 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: 20240061308Abstract: Optical devices and methods of fabricating thereof that include providing two different optical paths: a first optical path including a first waveguide core and a first cladding layer adjacent the first waveguide core; and a second optical path including a second waveguide core and a second cladding layer adjacent the second waveguide core. A thermo-optic coefficient (TOC) of the first waveguide core and a TOC of the first cladding layer have a same sign, for example positive, and a sign of a TOC of the second waveguide core is different than a sign of a TOC of the second cladding layer, for example, one positive and one negative. The paths may be in an Mach-Zehnder Interferometer (MZI).Type: ApplicationFiled: February 8, 2023Publication date: February 22, 2024Inventors: Tzu-Hsiang YEN, Yung-Jr HUNG, Tai-Chun HUANG
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Publication number: 20230228944Abstract: A waveguide division multiplexer and demultiplexer includes a first-stage Mach-Zehnder interferometer (MZI) and two second-stage MZIs. The first-stage MZI includes two input ends and two output ends, in which one of the inputs is configured to receive an input optical beam with a first center wavelength and a second center wavelength, and the output ends are configured to respectively transmit first-stage output optical beams respectively with the first center wavelength and the second center wavelength. One input terminals of the second-stage MZI are configured to respectively receive the first-stage output optical beams, and one output terminals of the second-stage MZI are configured to transmit second-stage output optical beams with the first and second center wavelengths, respectively. Each second-stage MZI is configured in cross-state condition.Type: ApplicationFiled: September 20, 2022Publication date: July 20, 2023Inventors: Yung-Jr HUNG, Tzu-Hsiang YEN
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Patent number: 8931547Abstract: A vehicle air conditioning system includes an electric powered refrigerant compressing device, an evaporator, an electric heater, an air temperature determining component, a cabin interior temperature controlling component, an upper limit electric power setting component, and an electric power distribution controller. The evaporator receives refrigerant from the compressing device. The heater is downstream of the evaporator in an air passageway. The determining component determines a first air temperature upstream of the evaporator and a second air temperature between the evaporator and the heater. The controlling component sets a vehicle interior discharge air temperature at a position downstream of the heater to a target temperature. The power setting component sets an upper limit for power supplied to the compressing device and the heater.Type: GrantFiled: June 8, 2011Date of Patent: January 13, 2015Assignee: Nissan Motor Co., Ltd.Inventors: Tzu-Hsiang Yen, Takayoshi Matsuoka, Takafumi Uehara
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Patent number: 8454355Abstract: A burning device is provided for fuel cell to be run under high temperature. The burning device uses a specific-designed fuel spraying device having porous medium. The burning device can be used under different statuses of flow in the fuel cell. With the burning device, the fuel cell has improved efficiency by enhancing recycling of system heat and pollution of discharged waste gas is reduced.Type: GrantFiled: March 9, 2010Date of Patent: June 4, 2013Assignee: Atomic Energy Council—Institute of Nuclear Energy ResearchInventors: Yu-Ching Tsai, Tzu-Hsiang Yen, Wen-Tang Hong, Cheng-Nan Huang, Hung-Yu Wang, Wei-Ping Huang, Chien-Hsiung Lee
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Publication number: 20130068443Abstract: A vehicle air conditioning system includes an electric powered refrigerant compressing device, an evaporator, an electric heater, an air temperature determining component, a cabin interior temperature controlling component, an upper limit electric power setting component, and an electric power distribution controller. The evaporator receives refrigerant from the compressing device. The heater is downstream of the evaporator in an air passageway. The determining component determines a first air temperature upstream of the evaporator and a second air temperature between the evaporator and the heater. The controlling component sets a vehicle interior discharge air temperature at a position downstream of the heater to a target temperature. The power setting component sets an upper limit for power supplied to the compressing device and the heater.Type: ApplicationFiled: June 8, 2011Publication date: March 21, 2013Applicant: NISSAN MOTOR CO., LTD.Inventors: Tzu-Hsiang Yen, Takayoshi Matsuoka, Takafumi Uehara
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Patent number: 8244382Abstract: An apparatus for monitoring a schedule for testing a fuel cell in a station. Because of the apparatus, the station can test a low-temperature fuel cell or a high-temperature fuel cell. The apparatus enables a user to test the fuel cell through the station manually or enables the station to test the fuel cell automatically.Type: GrantFiled: January 11, 2010Date of Patent: August 14, 2012Assignee: Atomic Energy Council—Institute of Nuclear ResearchInventors: Hung-Yu Wang, Wen-Tang Hong, Yu-Ching Tsai, Tzu-Hsiang Yen, Wei-Ping Huang, Cheng-Nan Huang
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Patent number: 8197975Abstract: A fuel cell system includes a fuel cell unit, a reformer with a catalyst and heat pipes around the catalyst, and a combustor connected to the heat pipes. A first fuel pipe sends fuel into the reformer. The fuel is reformed in the reformer. A first air port sends air into the reformer. An anode pipe sends the reformed fuel into the fuel cell unit. The chemical reaction of the reformed fuel occurs in the fuel cell unit. A cathode pipe sends the air into the fuel cell unit. A residual reformed fuel pipe sends residual reformed fuel into the combustor. A hot air pipe sends hot air into the combustor. The residual reformed fuel pipe is mixed with the hot air and burned in the combustor. A second fuel pipe sends more fuel into the combustor if necessary. A second air port sends air into the combustor if necessary.Type: GrantFiled: January 19, 2010Date of Patent: June 12, 2012Assignee: Atomic Energy Council Institue of Nuclear ResearchInventors: Tzu-Hsiang Yen, Wen-Tang Hong, Yu-Ching Tsai, Hung-Yu Wang, Wei-Ping Huang, Ming-Dar Lin, Chen-Po Lai, Cheng-Nan Huang
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Publication number: 20110177409Abstract: A fuel cell system includes a fuel cell unit, a reformer with a catalyst and heat pipes around the catalyst, and a combustor connected to the heat pipes. A first fuel pipe sends fuel into the reformer. The fuel is reformed in the reformer. A first air port sends air into the reformer. An anode pipe sends the reformed fuel into the fuel cell unit. The chemical reaction of the reformed fuel occurs in the fuel cell unit. A cathode pipe sends the air into the fuel cell unit. A residual reformed fuel pipe sends residual reformed fuel into the combustor. A hot air pipe sends hot air into the combustor. The residual reformed fuel pipe is mixed with the hot air and burned in the combustor. A second fuel pipe sends more fuel into the combustor if necessary. A second air port sends air into the combustor if necessary.Type: ApplicationFiled: January 19, 2010Publication date: July 21, 2011Applicant: ATOMIC ENERGY COUNCIL-INSTITUTE OF NUCLEAR ENERGY RESEARCHInventors: Tzu-Hsiang Yen, Wen-Tang Hong, Yu-Ching Tsai, Hung-Yu Wang, Wei-Ping Huang, Ming-Dar Lin, Chen-Po Lai, Cheng-Nan Huang
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Publication number: 20110171546Abstract: A solid oxide fuel cell system includes a fuel cell unit for generating electricity via executing an electrochemical reaction on fuel, a fuel supply for storing the natural gas, water and air and a re-composing unit for re-composing natural gas, water and air into the fuel. A pipe transfers the natural gas, water and air into the re-composing unit from the fuel supply. Another pipe transfers the fuel into the fuel cell unit from the re-composing unit. Another pipe transfers hot air into the re-composing unit from the fuel cell unit. A mixing unit mixes air with residual fuel from the fuel cell unit. A combusting unit burns the mixture from the mixing unit. A heat-exchanging unit executes heat-exchanging between air and the exhaust from the combusting unit. The heat-exchanging unit includes an air-inletting port, an exhaust port and another port for sending hot air into the fuel cell unit.Type: ApplicationFiled: January 11, 2010Publication date: July 14, 2011Applicant: ATOMIC ENERGY COUNCIL-INSTITUTE OF NUCLEAR ENERGY RESEARCHInventors: Wen-Tang Hong, Yu-Ching Tsai, Hung-Yu Wang, Tzu-Hsiang Yen, Wei-Ping Huang, Chien-Hsiung Lee, Cheng-Nan Huang, Ming-Dar Lin, Chen-Po Lai
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Publication number: 20110172789Abstract: Disclosed is an apparatus for monitoring a schedule for testing a fuel cell in a station. Because of the apparatus, the station can test a low-temperature fuel cell or a high-temperature fuel cell. The apparatus enables a user to test the fuel cell through the station manually or enables the station to test the fuel cell automatically.Type: ApplicationFiled: January 11, 2010Publication date: July 14, 2011Applicant: ATOMIC ENERGY COUNCIL-INSTITUTE OF NUCLEAR ENERGY RESEARCHInventors: Hung-Yu Wang, Wen-Tang Hong, Yu-Ching Tsai, Tzu-Hsiang Yen, Wei-Ping Huang, Cheng-Nan Huang
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Publication number: 20110097646Abstract: A burning device is provided for fuel cell to be run under high temperature. The burning device uses a specific-designed fuel spraying device having porous medium. The burning device can be used under different statuses of flow in the fuel cell. With the burning device, the fuel cell has improved efficiency by enhancing recycling of system heat and pollution of discharged waste gas is reduced.Type: ApplicationFiled: March 9, 2010Publication date: April 28, 2011Applicant: ATOMIC ENERGY COUNCIL-INSTITUTE OF NUCLEAR ENERGY RESEARCHInventors: Yu-Ching Tsai, Tzu-Hsiang Yen, Wen-Tang Hong, Cheng-Nan Huang, Hung-Yu Wang, Wei-Ping Huang, Chien-Hsiung Lee
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Publication number: 20100145672Abstract: In an aspect of the present invention, a microcomputer includes a CPU core section, and a plurality of external input terminals. A testing section selects a selection external input terminal from the plurality of external input terminals, detects an intermediate voltage of the selection external input terminal, and outputs an interrupt processing signal related to the detection of the intermediate voltage to the CPU core section.Type: ApplicationFiled: December 4, 2009Publication date: June 10, 2010Applicant: NEC ELECTRONICS CORPORATIONInventor: Tzu-hsiang YEN
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Publication number: 20040168093Abstract: The present invention relates to a remote controlling method wherein the terminal appliance passes through Web to connect to LAN to further pass through telephone wire, coaxial cable, Cat 5 to connect to Internet for remote controlling. The present invention mainly consists of Web control, controller and RJ-45 support. The Web control is characterized by the use of Embedded Web Power for embedded Web management and provides human browser operating interface for easy installation and controlling. The controller consists of a built-in Embedded Web Power designed with serial port holes connecting the terminal machine (or terminal simulator) to Embedded Web Power and using service list provided by the built-in controller for setting up of IP address and wave frequency. The RJ-45 support provides a RJ-45 entry to enable remote access to terminal controller procedure.Type: ApplicationFiled: February 25, 2003Publication date: August 26, 2004Applicant: CHIC TECHNOLOGY CORP.Inventor: Tzu Hsiang Yen
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Publication number: 20030142076Abstract: The present invention relates to a new office mouse design especially using a mouse button to activate, open files and edit or design a completely new function of MicroSoft Office software series. The new office mouse comprises of five-buttons mouse or a common mouse wherein the activating button is the middle button of the five-buttons mouse, the special left button consists of the file opening button, the special right button consists of the editing or designing button; or specially design in advance the expansion key of a common mouse key with a menu selection function. Hence, the new practical use of the present invention provides a convenient, rapid, approachable and relaxing operation and simultaneously, increases value of the mouse products.Type: ApplicationFiled: December 11, 2002Publication date: July 31, 2003Applicant: CHIC TECHNOLOGY CORP.Inventor: Tzu-Hsiang Yen
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Patent number: D527004Type: GrantFiled: May 20, 2003Date of Patent: August 22, 2006Assignee: CHIC Technology Corp.Inventor: Tzu-Hsiang Yen
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Patent number: D490431Type: GrantFiled: May 22, 2003Date of Patent: May 25, 2004Assignee: Chic Technology Corp.Inventor: Tzu-Hsiang Yen