Patents by Inventor Wen Chi
Wen Chi 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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Patent number: 6266896Abstract: A shoe sole including a shoe sole casing and a polyurethane foam body encased by the shoe sole casing. The shoe sole casing is made of a material having a high specific gravity. The shoe sole casing has a top layer and a bottom layer with a plurality of through holes formed in the top layer. The polyurethane foam body has an ultra lightweight and a plurality of material-reducing holes corresponding in location to the through holes of the shoe sole casing. The polyurethane foam body is provided with a plurality of through holes, with each having a connection rod extending from the top layer to the bottom layer of the casing therein for placing the polyurethane foam body in the shoe sole casing.Type: GrantFiled: March 20, 2000Date of Patent: July 31, 2001Assignee: Ding Sheug Industry Co., Ltd.Inventor: Wen-Chi Liu
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Patent number: 6233204Abstract: A time board for dynamically displaying the universal time is provided, the board is adaptable to hang on the wall of lounge of an airport, a main railroad station hall, a passenger terminal of a harbor, the office of tele-communication and the classroom of a school, and comprises a flat rectangular board having front panel on which a world map of Mercator Equator Projection is attached containing every country and region of the world which are covered by 24 time zones, each of the time zone occupies 15 degrees longitudes repersenting an hour. An universal date display column and an universal hour display column parallel extend adjacent an upper border of the board from left to right margin thereof each contains 25 display windows spaced apart and in cooperation with the 24 time zones for inserting binary numbered LEDs to dynamically display the date and time differences around the world.Type: GrantFiled: November 12, 1996Date of Patent: May 15, 2001Inventors: Sheng-Pen Chu, Wen-Chi Chu, Wen-Ching Chu
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Patent number: 6157119Abstract: An apertured shadow mask in a color cathode ray tube (CRT) serves as a color selection electrode in permitting each of the three electron beams to be incident only upon its associated color-producing phosphor elements on the CRT's display screen. The apertures are arranged in vertical columns and horizontal rows in the shadow mask with aperture spacing defined by a vertical pitch (P.sub.v) i.e., the vertical spacing between adjacent apertures within the same vertical column where the apertures in one row are in different columns than the apertures in adjacent rows, and a horizontal pitch (P.sub.h), i.e., the horizontal spacing between adjacent apertures in the same horizontal row. To increase the color purity adjustment margin particularly in the corners of the display screen while still maintaining sufficient vertical spacing between adjacent phosphor dot color trios for a high degree of video image resolution, P.sub.Type: GrantFiled: September 18, 1998Date of Patent: December 5, 2000Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Hao-Cheng Hung, Wen-Chi Chen, Yu-Hsin Hu, Chun-Hung Lu
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Patent number: 6144148Abstract: A holder for maintaining an apertured shadow mask in fixed relation to the display screen of a color cathode ray tube (CRT) includes the combination of a mounting stud attached to an inner portion of the CRT's glass envelope and an apertured resilient metal holder attached to the shadow mask's peripheral frame and adapted to receive the mounting stud in a tight-fitting manner. A plurality of such mounting stud/metal holder combinations securely attach the top, bottom and lateral edges of the shadow mask frame to adjacent inner portions of the CRT's glass envelope adjacent its display screen. Heating of the shadow mask caused by the CRT's electron beams incident thereon gives rise to heating and thermal expansion of the shadow mask metal holders.Type: GrantFiled: August 10, 1998Date of Patent: November 7, 2000Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Hua-Sou Tong, Wen-Chi Chen, Hao-Cheng Hung
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Patent number: 6130501Abstract: An arrangement for mounting a shadow mask, or color selection electrode, in the glass envelope of a color cathode ray tube (CRT) includes four resilient metal holders, each spot welded to a respective upper, lower or lateral portion of the shadow mask's skirt. Each holder is formed from a unitary metal strip which is shaped so as to include an inner mounting portion spot welded to the mask's skirt and an outer apertured portion adapted to receive a stud attached to and extending inwardly from the CRT's glass envelope. The shadow mask undergoes thermal deformation, or doming, when heated by electron beams incident thereon and transfers heat to each of the metallic holders. Each of the metallic holders, in turn, undergoes thermal deformation, but because of the shape and orientation of the holders relative to the shadow mask, the four holders deflect the shadow mask in a direction generally perpendicular to and outward from the CRT's glass display screen, i.e., along the CRT's Z-axis.Type: GrantFiled: June 22, 1998Date of Patent: October 10, 2000Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Hua-Sou Tong, Wen-Chi Chen, Hao-Cheng Hung
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Patent number: 6117268Abstract: The apparatus of the present invention is used to carry substrates processed in an etching process and provides a guiding member to shelter and protect substrates from being dampened by droplets. The apparatus comprises spaced chucks connected to a substrate holder with two arms, respectively. The guiding member is a roof plate disposed under the chucks and abutted against the arms, so that the guiding member can induce the droplets falling from the chucks to flow to the arms. The substrates can be effectively kept dry and clean.Type: GrantFiled: July 29, 1999Date of Patent: September 12, 2000Assignee: Nanya Technology CorporationInventors: Wen Chi Hsu, Yinan Chen, Shang-Shu Chung, Jung-Hsing Chien, Jyh Shorng Horng, Chien-Hua Lee
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Patent number: 6067750Abstract: An automatic sprinkling device for a bean sprout culture box assembly including a base box and a stacked culture boxes. The device includes a pump mounted on the base box which pumps water from the base box to the top culture box. The device includes a pump actuating circuit that actuates the pump, a transistor having a base and a collector, and a relay having a first end connected to the collector of the transistor and a second end connected to the pump. A microprocessor having an output is connected to the base of the transistor. A data setting unit is connected to an input of the microprocessor and arranged to input data into the microprocessor. A display unit is connected to the output of the microprocessor and displays data generated by the data setting unit. A memory device is connected to the microprocessor and is arranged to store data set by the data setting unit.Type: GrantFiled: May 7, 1998Date of Patent: May 30, 2000Inventor: Wen-Chi Lai
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Patent number: 6058609Abstract: A knife holder includes two transparent plates, a plurality of partitioning blocks, a plurality of securing blocks, and a plurality of larger securing blocks. The partitioning blocks are spaced equi-distantly apart between the plates such that the plates define a receiving space. Upper ends of the plates are provided with a plurality of pairs of opposite indentations. The receiving space and the indentations are sized to receive knives. The knives are divided by the partitioning blocks so that they do not overlap. The partitioning blocks have front and rear ends forming bolt portions that pass through corresponding through holes in the plates for screwable engagement with the securing blocks so that the plates can be screwably secured on the partitioning blocks. The larger securing blocks are secured at two lower corners of each plate so that the knife holder can stand on a planar surface.Type: GrantFiled: May 5, 1999Date of Patent: May 9, 2000Inventors: Jung-Chieh Yen, Wen-Chi Chen
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Patent number: 6055743Abstract: A method and an apparatus for drying a semiconductor wafer. The semiconductor wafer is first dipped in a liquid with a volatility higher than water and which is miscible with water. The dipped semiconductor wafer is then delivered in an IPA dryer to carry out the drying process. The drying process includes evaporating isopropyl alcohol to obtain a vapor and condensing the IPA vapor on the surface of the semiconductor wafer. The IPA is heated and vaporized by a hot plate disposed at the bottom of the IPA dryer. The condenser is mounted on the inner peripheral surface of the IPA dryer and surrounds the semiconductor wafer, which is supported by a holder.Type: GrantFiled: January 20, 1998Date of Patent: May 2, 2000Assignee: Nanya Technology Corp.Inventors: Yi-Nan Chen, Wen-Chi Hsu
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Patent number: 5990607Abstract: A shadow mask, or color selection electrode, in a color cathode ray tube (CRT) is in the form of a thin metal foil and includes a large number of apertures through which electron beams are directed onto the phosphorescent coating on the CRT's display screen for forming a video image. The apertured shadow mask is also used with a light source during CRT manufacture to form a large number of spaced phosphor elements in the phosphorescent coating. Ideally, all of the beam passing apertures and phosphor elements are circular in cross-section, but the shadow mask is stretched and maintained under high tension when mounted in the CRT causing some of the apertures, particularly those adjacent its four corners, to also become stretched and assume an oval shape.Type: GrantFiled: July 14, 1998Date of Patent: November 23, 1999Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Ching-Hsiang Tseng, Wen-Chi Chen, Kuo-Cheng Chen
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Patent number: 5983562Abstract: A bean sprout culture box assembly includes a water carrying plate defining an overflow port in one side wall thereof. A transparent box is supported on the water carrying plate and includes four side walls and a bottom portion. A plurality of vent holes are defined in each of the side walls of the transparent box, and a plurality of draining holes are defined in the bottom portion of the transparent box. A net plate is received in the transparent box and is supported on the bottom portion thereof, and a plurality of meshes are defined in the net plate and communicate with the draining holes. A transparent hood is mounted on an upper portion of the transparent box, and a plurality of vent ports are defined in the transparent hood.Type: GrantFiled: July 2, 1997Date of Patent: November 16, 1999Inventor: Wen-Chi Lai
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Patent number: 5912535Abstract: A circuit driving electric luminescent panel in which the high potential contact of electric luminescent panel is connected to two parallel connected transistors of which the emitter of the first transistor is connected to a current--resisting coil and the positive pole of a diode in order to raise the voltage at the contact of the electric luminescent panel. The first transistor provides, within the time when the signal at its base is low, a negative voltage to increase the peak value-to-peak value voltage across the electric luminescent panel and its luminosity as well. Furthermore, another kind of design concept is presented with which the timing impulse of controlling signals while operation can be governed with its duty to control current consumption.Type: GrantFiled: December 18, 1996Date of Patent: June 15, 1999Assignee: Semisilicon Technology Corp.Inventor: Wen Chi Peng
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Patent number: 5855040Abstract: A hinge structure of rotary door, including a mechanical rotary hinge and a buffering rotary hinge inserted in a hinge casing. An upper section of the rotary shaft of the buffering rotary hinge is formed with two opposite ring seats. A flange body is slidably fitted around the rotary shaft between the ring seats. An upper and a lower edges of the flange body and the ring seats are respectively disposed with corresponding projecting wedge edges and recessed wedge edges so as to lift or lower the rotary shaft along with the opening or closing of the door. A flange body is formed with an insertion hole and the ring seat is formed with a slide slot to be inserted in the casing. A piston body disposed with oil seal ring is fitted with the end of the rotary shaft to be slidably disposed in an oil cylinder. The piston body is formed with an annular groove communicated with a lower chamber by several through holes for fast opening the door.Type: GrantFiled: March 31, 1997Date of Patent: January 5, 1999Assignee: Dawnwell Int'l Co., Ltd.Inventor: Wen-Chi Lin
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Patent number: 5831555Abstract: A cover-actuated keyboard encoding system is disclosed which can be used either alone or as a part of a universal remote control unit. It contains (a) a keyboard; (b) a memory for storing a plurality of control codes; (c) a special keyboard cover for covering the first keyboard; and (d) a computer program to convert the covered keys of the first keyboard into a control code. The keyboard cover is designed such that it contains one or more key-seat protrusions which are arranged such that they will be pressing against one or more of the first keys when the keyboard cover is closed. A CPU is programmed to scan the key board and convert the scanned keyboard value to a control code, in accordance with the number and locations of the keys that are being pressed during a power-on or a reset.Type: GrantFiled: March 17, 1997Date of Patent: November 3, 1998Assignee: Industrial Technology Research InstituteInventors: Der-Jang Yu, Wen-Chi Lin, Yi-Kai Wang, Chun-Pin Huang
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Patent number: 5706088Abstract: A polarizer-sample-analyzer intensity quotient ellipsometer and ellipsometric technique is disclosed which includes: a polarized light source, including a light source and a polarizer, for providing polarized light; and a detecting device, including an analyzer and a photodetector. The ellipsometer successively measures three intensities of polarized light emitted by the polarized light source and reflected by the sample being measured with the azimuth angle of the polarizer rotated to .+-.45.degree. with respect to a plane of incidence and the azimuth angle of the analyzer successively rotated to 0.degree.,60.degree., and 120.degree.. With these three measurements, the ellipsometric parameters .psi. and .DELTA. can be deduced. The invention also calculates deviations in the azimuth angles of the polarizer and analyzer with respect to a plane of incidence by utilizing two intensity quotients under two incident angles to be equal after roughly adjusting azimuth angles of the polarizer and the analyzer.Type: GrantFiled: February 20, 1996Date of Patent: January 6, 1998Assignee: National Science CouncilInventors: Yu-Faye Chao, Chi-Shing Wei, Wen-Chi Lee
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Patent number: 5581212Abstract: A fully differential, wide-band transconductance-transimpedance amplifier with a tuneable gain is disclosed. The amplifier includes a transconductance stage for generating a current signal from an inputted voltage signal. The amplifier also has a current gain stage for amplifying the current signal generated by the transconductance stage. Additionally, the amplifier includes a transimpedance stage for generating an output voltage signal from the amplified current signal generated in the current gain stage.Type: GrantFiled: March 13, 1995Date of Patent: December 3, 1996Assignee: Industrial Technology Research InstituteInventors: Po-Chiun Huang, Chorng-Kuang Wang, Wen-Chi Wu, Yuh-Diahn Wang
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Patent number: 5561653Abstract: An ejector apparatus of a tray device is provided. The tray device movably seats within the space of an electronic equipment. The ejector apparatus includes a support and an ejector. The support has a attachment apparatus adapted to mount on a chassis of the electronic equipment. The ejector pushes the tray device out of the electronic equipment in response to a force applied from the outside of the electronic equipment. The ejector is pivotally connected to the support.Type: GrantFiled: November 10, 1994Date of Patent: October 1, 1996Assignee: Acer Peripherals Inc.Inventors: Dong-Yih Liou, Wen-Chi Tseng, Chung-Chi Liao
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Patent number: 5516592Abstract: A method for preparing foamed aluminum alloy composites comprising the steps of: (a) placing a liquid hardness-reinforcement composition into a tank, the hardness-reinforcement composition containing about 54.about.64 wt. % of an inorganic powder, about 35.about.45 wt. % of a nonflammable curable resin, and about 1 wt. % of a curing agent; (b) placing a foamed aluminum alloy plate having an internal porous body into the tank containing the hardness-reinforcement composition, then applying a pressure of about 10.about.50 Kg/cm.sup.2 onto the foamed aluminum alloy plate for about one to two hours so as to allow the hardness-reinforcement composition to soak into the foamed aluminum alloy plate and form a coated layer on the surface of the porous body; (c) removing the foamed aluminum alloy plate that has been coated with a layer of the hardness-reinforcement composition from the tank; and (d) drying and curing the curable nonflammable resin so as to form the foamed aluminum alloy composite.Type: GrantFiled: January 20, 1995Date of Patent: May 14, 1996Assignee: Industrial Technology Research InstituteInventors: Chin-Chan Yang, Kou-Chang Su, Wen-Chi Chen, Shan-Chang Chueh
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Patent number: 5451902Abstract: A fully differential, wide-band transconductance-transimpedence amplifier with a tuneable gain is disclosed. The amplifier includes a transconductance stage for generating a current signal from an inputted voltage signal. The amplifier also has a current gain stage for amplifying the current signal generated by the transconductance stage. Additionally, the amplifier includes as transimpedance stage for generating an output voltage signal from the amplified current signal generated in the current gain stage.Type: GrantFiled: October 18, 1993Date of Patent: September 19, 1995Assignee: Industrial Technology Research InstituteInventors: Po-Chiun Huang, Chorng-Kuang Wang, Wen-Chi Wu, Yuh-Diahn Wang
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Patent number: RE36511Abstract: An ejector apparatus of a tray device is provided. The tray device movably seats within the space of an electronic equipment. The ejector apparatus includes a support and an ejector. The support has a attachment apparatus adapted to mount on a chassis of the electronic equipment. The ejector pushes the tray device out of the electronic equipment in response to a force applied from the outside of the electronic equipment. The ejector is pivotally connected to the support.Type: GrantFiled: October 1, 1998Date of Patent: January 18, 2000Assignee: Acer Peripherals Inc.Inventors: Dong-Yih Liou, Wen-Chi Tseng, Chung-Chi Liao