Patents by Inventor I-Wen Liu
I-Wen Liu 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: 9124267Abstract: A digital transmitter includes: a plurality of adjustable delay lines arranged to delay a plurality of digital input signals by a plurality of delay times to generate a plurality of delayed digital input signals respectively; a plurality of converting devices arranged to convert the plurality of delayed digital input signals into a plurality of converting signals respectively; and a calibration device arranged to adjust a delay time of at least one adjustable delay line in the plurality of adjustable delay lines to make the plurality of converting devices convert the plurality of delayed digital input signals at respective desire time points.Type: GrantFiled: May 20, 2014Date of Patent: September 1, 2015Assignee: MEDIATEK INC.Inventors: Wen-Chieh Wang, Chi-Hsueh Wang, Hsiang-Hui Chang, I-Wen Liu, Khurram Muhammad, Chih-Ming Hung
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Patent number: 8906339Abstract: The invention provides a high module carbon fiber and a fabrication method thereof. The high module carbon fiber includes the product fabricated by the following steps: subjecting a pre-oxidized carbon fiber to a microwave assisted graphitization process, wherein the pre-oxidized carbon fiber is heated to a graphitization temperature of 1000-3000° C. for 1-30 min. Further, the high module carbon fiber has a tensile strength of between 2.0-6.5 GPa and a module of between 200-650 GPa.Type: GrantFiled: May 29, 2010Date of Patent: December 9, 2014Assignee: Industrial Technology Research InstituteInventors: Chih-Yung Wang, I-Wen Liu, Jong-Pyng Chen, Shu-Hui Cheng, Syh-Yuh Cheng
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Publication number: 20140348264Abstract: A digital transmitter includes: a plurality of adjustable delay lines arranged to delay a plurality of digital input signals by a plurality of delay times to generate a plurality of delayed digital input signals respectively; a plurality of converting devices arranged to convert the plurality of delayed digital input signals into a plurality of converting signals respectively; and a calibration device arranged to adjust a delay time of at least one adjustable delay line in the plurality of adjustable delay lines to make the plurality of converting devices convert the plurality of delayed digital input signals at respective desire time points.Type: ApplicationFiled: May 20, 2014Publication date: November 27, 2014Applicant: MEDIATEK INC.Inventors: Wen-Chieh Wang, Chi-Hsueh Wang, Hsiang-Hui Chang, I-Wen Liu, Khurram Muhammad, Chih-Ming Hung
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Publication number: 20110158895Abstract: The invention provides a high module carbon fiber and a fabrication method thereof. The high module carbon fiber includes the product fabricated by the following steps: subjecting a pre-oxidized carbon fiber to a microwave assisted graphitization process, wherein the pre-oxidized carbon fiber is heated to a graphitization temperature of 1000-3000° C. for 1-30 min. Further, the high module carbon fiber has a tensile strength of between 2.0-6.5 GPa and a module of between 200-650 GPa.Type: ApplicationFiled: May 29, 2010Publication date: June 30, 2011Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chih-Yung Wang, I-Wen Liu, Jong-Pyng Chen, Shu-Hui Cheng, Syh-Yuh Cheng
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Publication number: 20090061128Abstract: A silicone bakeware provided with an upper rim has at least one support wire ring wrapped up in outer surfaces of the silicone bakeware, and plural shuttles fitted and spaced apart on the at least one support wire ring. The shuttles made of a compatible material to silicone rubber are provided with plural tooth-shaped grooves in an outer surface. The at least one support wire ring is in advance placed in groove of a female mold and kept therein at a distance from the inner wall surface of the groove and located in the center of the groove without biasing. In the process of forming the silicone bakeware in a mold by injection molding, the at least one support wire ring is wrapped up in a balanced condition with the silicone rubber material and held by the shuttles to augment its stress, preventing it from disfiguring.Type: ApplicationFiled: August 31, 2007Publication date: March 5, 2009Inventor: I-Wen Liu
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Publication number: 20070053615Abstract: A shockproof packing bag includes an upper and a lower bag body combined together and formed with an accommodating chamber therebetween. The upper and the lower bag body are respectively provided with an inner layer and an outer layer, which have their peripheral edges combined together by thermal fusing to form the upper and the lower bag body. The upper and the lower bag body have their peripheral edges attached with a zipper and are respectively formed with an air chamber between the inner and the outer layer. The upper and the lower bag body have one lateral side thermally fused together to form a compressed side having an air tap fitted therein. After inflated, the packing bag will form plural air bags for wrapping and positioning articles therein, having effect of shock prevention, usable repeatedly and highly effectively for environmental protection.Type: ApplicationFiled: September 2, 2005Publication date: March 8, 2007Inventors: I-Wen Liu, Che-Ting Liu
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Patent number: 7144137Abstract: A lampshade includes a main body made of silicone rubber and preset in shape. The main body has its upper and lower circumferential edge respectively wrapped inside with an elastic bar and the inner side of its upper circumferential edge provided with a plurality of lugs respectively bored with an insert hole. The supporting bars at the upper end of a lamp holder are respectively inserted and fixed in the insert holes at the upper inner side of the main body to prop open the upper side of the main body and let the lower side drop downward naturally to form a lampshade for use. The lampshade made of flexible silicone rubber with excellent plasticity can be collapsed to diminish its dimensions when it is not in use.Type: GrantFiled: August 23, 2004Date of Patent: December 5, 2006Inventor: I-Wen Liu
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Publication number: 20060039155Abstract: A lampshade includes a main body made of silicone rubber and preset in shape. The main body has its upper and lower circumferential edge respectively wrapped inside with an elastic bar and the inner side of its upper circumferential edge provided with a plurality of lugs respectively bored with an insert hole. The supporting bars at the upper end of a lamp holder are respectively inserted and fixed in the insert holes at the upper inner side of the main body to prop open the upper side of the main body and let the lower side drop downward naturally to form a lampshade for use. The lampshade made of flexible silicone rubber with excellent plasticity can be collapsed to diminish its dimensions when it is not in use.Type: ApplicationFiled: August 23, 2004Publication date: February 23, 2006Inventor: I-Wen Liu
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Publication number: 20060021991Abstract: A sealing cap includes radial wave-like stripes on an upper surface, a pull hole and an extended-out rod projections formed on one side, a brim formed on the other side of the pull hole and ridges formed on an inner surface of the annular circumferential vertical wall. The thickness of the stripes gradually becomes thinner from the outer circumference to the center. In using, a user holds the pull hole with fingers inserted therein, and with the other hand pulling the brim down to seal the sealing cap on a container. Then the moist and taste of the food stored in the container can be prevented from dispersing out. In addition, the sealing cap cannot be broken in handling process of sealing by means of the elasticity produced by the structure of the stripes with its thinness gradually becoming thinner from the outer circumference to the center.Type: ApplicationFiled: August 2, 2004Publication date: February 2, 2006Inventor: I-Wen Liu
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Publication number: 20050199636Abstract: A silicone-rubber plate used in an oven includes an plate body, a projecting circumferential edge formed around the plate body and containing a metal bar therein, two pairs of upper ears and of lower ears formed on the outer vertical surface of the plate body and facing each other and respectively having a through hole, and plural U-shaped support bars crossing each other and propping the lower side of the plate body and respectively having two ends inserting firmly in the through holes of the upper and the lower ears of the plate body. Then the plate is supported by the support bars and the metal bars so that the plate may not disfigure when held up, keeping intact its flat shape, preventing soup therein from overflowing and keeping intact the appearance of baked food thereon and to hamper food from falling off.Type: ApplicationFiled: March 9, 2004Publication date: September 15, 2005Inventor: I-Wen Liu
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Publication number: 20050098450Abstract: A bag for moisture removal comprises a box with a box cover containing exsiccator and a bag for enclosing the exsiccator box. The box cover is provided with many fine holes, and the bag is provided with a plurality of through holes on one side thereof in a corresponding area, which through holes are sealed from outside by an adhesive paper sheet when the bag is not in use. The lower portion of the bag forms a liquid container. To use the bag for moisture removal, the adhesive paper sheet is removed firstly and the bag is hanged in a room. The exsiccator absorbs the moisture in the air and produces water drops, which flow through diversion grooves to be collected in the liquid container, thereby achieving the effect of keeping the room from being over moist.Type: ApplicationFiled: November 6, 2003Publication date: May 12, 2005Inventor: I-Wen Liu
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Patent number: 6357687Abstract: An easily tear-off tissue holder includes a base, a shaft connected with and standing on the base, a fix rod connected with the shaft and having a slide hole for an upper small diameter connect rod of the shaft to fit and move up and down therein, and a press member connected on top of the fix rod to press down the fix rod and an elastic cylindrical member. When the press member is pressed down the fix rod and the elastic cylinder member, the elastic cylinder member with vertical slots and of narrow strips defined by every two neighboring vertical slots may elastically bend diametrically outward to push an inner wall of a cylindrical shaft of a coil tissue to stop the coil tissue immovable for easily tearing off a proper length of the tissue, by which the coil tissue may not be smeared in tearing off action.Type: GrantFiled: November 27, 2000Date of Patent: March 19, 2002Inventor: I-Wen Liu
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Patent number: 6263783Abstract: A broiler frame includes a base, a net, an ash plate, two sloping side plates and a net frame combined together. The broiler frame has good heat concentration, and possible to broil food in various ways, with food to be broiled not sticking to the net, easy to assemble and disassemble for washing and convenient for storing away.Type: GrantFiled: February 14, 2001Date of Patent: July 24, 2001Inventor: I-Wen Liu
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Patent number: 5211105Abstract: A smokeless and scorchless grill pan comprising a food plate, an oil pan placed under the food plate, and a lower pan placed under the oil pan for burning a fire to heat the oil pan and the air in a hollow space between the oil pan and the food plate, the oil pan having a bottom corrugated with a plurality of holes for heated air to flow through and two opposite recesses near a circumferential edge, the food plate also corrugated and having a plurality of oil holes for oil coming out of food placed on the food plate to flow through down to drop on the oil pan and then flow into the two opposite recesses of the oil pan.Type: GrantFiled: November 16, 1992Date of Patent: May 18, 1993Inventor: I-Wen Liu