Patents by Inventor Shen Jen
Shen Jen 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: 7972438Abstract: This invention is related to material for use as an ultraviolet (UV) optical element and particularly for use as a 193 nm immersion lens element. The material for use as a UV optical element includes a Lithium Magnesium Aluminate (LMAO) body. The specific compound for this application is the disordered lithium magnesium spinel, having the general composition of LixMg2(1?x)Al4+xO8 where x=0 to 1 as the high-index UV transparent material for immersion lithography. The LMAO body may include a disordered spinel, such as, for example, a single crystal that may be cubic in symmetry, optically isotropic, and having cation disorder within the structure to reduce the intrinsic birefringence (IBR). The LMAO body has certain desired material properties and may be readily made in relatively large sizes suitable for use as the UV optical element for photolithography.Type: GrantFiled: August 29, 2007Date of Patent: July 5, 2011Assignee: Crystal Photonics, IncorporatedInventors: Yi-Ting Fei, Shen Jen, Bruce Chai
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Publication number: 20090009672Abstract: An array substrate comprises a scanning line; a data line crossing the scanning line; a pixel electrode; a common electrode; and a Thin Film Transistor comprising a gate electrode connected to the scanning line, a source electrode connected to the data line and a drain electrode connected to the pixel electrode, the drain electrode and the scanning line forming a first capacitor therebetween. The array substrate further comprises an auxiliary capacitor which is in parallel with the first capacitor.Type: ApplicationFiled: March 18, 2008Publication date: January 8, 2009Inventors: Te-Chen Chung, Tean-Shen Jen
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Publication number: 20080055715Abstract: This invention is related to material for use as an ultraviolet (UV) optical element and particularly for use as a 193 nm immersion lens element. The material for use as a UV optical element includes a Lithium Magnesium Aluminate (LMAO) body. The specific compound for this application is the disordered lithium magnesium spinel, having the general composition of LixMg2(1-x)Al4+xO8 where x=0 to 1 as the high-index UV transparent material for immersion lithography. The LMAO body may include a disordered spinel, such as, for example, a single crystal that may be cubic in symmetry, optically isotropic, and having cation disorder within the structure to reduce the intrinsic birefringence (IBR). The LMAO body has certain desired material properties and may be readily made in relatively large sizes suitable for use as the UV optical element for photolithography.Type: ApplicationFiled: August 29, 2007Publication date: March 6, 2008Applicant: Crystal Photonics, IncorporatedInventors: Yi-Ting Fei, Shen Jen, Bruce Chai
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Patent number: 6517787Abstract: The present invention discloses an ozone generator with reduced NOx comprising an air stream generating device; a drying device; an electrical field generating unit; a high-voltage generating device; and a cooling device. The flow velocity of the air stream in the ozone generating area can be increased by the air stream generating device up to 700 s.c.c.m. The temperature in the ozone generating area can be lowered by the cooling system to lower than 10° C. The amount of NOx produced by the disclosed ozone generator can be reduced substantially.Type: GrantFiled: June 6, 2001Date of Patent: February 11, 2003Inventors: Ren-Jang Wu, Shen-Jen Chen, Yih-Fang Lin
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Patent number: 6455986Abstract: An electronic device includes a piezoelectric layer formed of an ordered Langasite structure compound having the formula A3BC3D2E14 wherein A is strontium, B is niobium, C is gallium, D is silicon, and E is oxygen. At least one electrode is connected to the piezoelectric layer and may be configured to define a device, such as a SAW resonator or filter, or a BAW resonator or filter. The ordered Langasite structure compound may have a substantially perfectly ordered structure.Type: GrantFiled: May 3, 2001Date of Patent: September 24, 2002Assignee: Crystal Photonics, IncorporatedInventors: Bruce H. T. Chai, Mitch M. C. Chou, Haihong Qiu, Shen Jen
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Patent number: 6424081Abstract: An electronic device includes a piezoelectric layer formed of an ordered Langasite structure compound having the formula A3BC3D2E14, wherein A is calcium, B is niobium or tantalum, C is gallium, D is silicon, and E is oxygen. At least one electrode is connected to the piezoelectric layer and may be configured to define a device, such as a SAW resonator or filter, or a BAW resonator or filter. The ordered Langasite structure compound may have a substantially perfectly ordered structure.Type: GrantFiled: May 3, 2001Date of Patent: July 23, 2002Assignee: Crystal Photonics, IncorporatedInventors: Bruce H. T. Chai, Mitch M. C. Chou, Haihong Qiu, Shen Jen
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Publication number: 20020058001Abstract: The present invention discloses an ozone generator with reduced NOx comprising an air stream generating means; a drying means; an electrical field generating unit; a high-voltage generating means; and a cooling means. The flow velocity of the air stream in the ozone generating area can be increased by means of the air stream generating means up to 700 s.c.c.m, The temperature in the ozone generating area can be lowered by means of the cooling system to lower than 10° C. By means of the above, the amount of NOx produced by the disclosed ozone generator can be reduced substantially.Type: ApplicationFiled: June 6, 2001Publication date: May 16, 2002Inventors: Ren-Jang Wu, Shen-Jen Chen, Yih-Fang Lin
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Publication number: 20020027397Abstract: An electronic device includes a piezoelectric layer formed of an ordered Langasite structure compound having the formula A3BC3D2E14, wherein A is calcium, B is niobium or tantalum, C is gallium, D is silicon, and E is oxygen. At least one electrode is connected to the piezoelectric layer and may be configured to define a device, such as a SAW resonator or filter, or a BAW resonator or filter. The ordered Langasite structure compound may have a substantially perfectly ordered structure.Type: ApplicationFiled: May 3, 2001Publication date: March 7, 2002Applicant: Crystal Photonics, IncorporatedInventors: Bruce H.T. Chai, Mitch M.C. Chou, Haihong Qiu, Shen Jen
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Publication number: 20020021193Abstract: An electronic filter includes a piezoelectric layer formed of an ordered Langasite structure compound having the formula A3BC3D2E14, wherein A is strontium, B is tantalum, C is gallium, D is silicon, and E is oxygen. A plurality of pairs of electrodes are connected to and cooperate with the piezoelectric layer to define a SAW or BAW filter, for example. The ordered Langasite structure compound may have a substantially perfectly ordered structure.Type: ApplicationFiled: May 3, 2001Publication date: February 21, 2002Applicant: Crystal Photonics, IncorporatedInventors: Bruce H.T. Chai, Mitch M.C. Chou, Haihong Qiu, Shen Jen
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Publication number: 20020015452Abstract: An electronic device includes a piezoelectric layer formed of an ordered Langasite structure compound having the formula A3BC3D2E14 wherein A is strontium, B is niobium, C is gallium, D is silicon, and E is oxygen. At least one electrode is connected to the piezoelectric layer and may be configured to define a device, such as a SAW resonator or filter, or a BAW resonator or filter. The ordered Langasite structure compound may have a substantially perfectly ordered structure.Type: ApplicationFiled: May 3, 2001Publication date: February 7, 2002Applicant: Crystal Photonics, IncorporatedInventors: Bruce H.T. Chai, Mitch M.C. Chou, Haihong Qiu, Shen Jen
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Patent number: 6279241Abstract: The present invention relates to a thickness gauge which comprises a plurality of metallic sheets made to have standard thickness, a U-shaped frame and a screw which adjusts tightness of the metallic sheets. The present invention is characterized in that each metallic sheet comprises a hole and that the hole positions of any two neighboring metallic sheets are different; when two or more pieces of metallic sheets overlap, the holes of the metallic sheets will be shielded by other metallic sheet and human eyes can not see through the holes. In another preferred embodiment, the thickness gauge is characterized in that there is a cut at each metallic sheet. Whereby users can distinguish clearly and conveniently one metallic sheet from several metallic sheets overlapping together and could avoid misuse and measurement errors.Type: GrantFiled: July 6, 1999Date of Patent: August 28, 2001Assignee: Industrial Technology Research InstituteInventor: Shen-Jen Chen
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Patent number: 6193411Abstract: The present invention relates to a calibrator for contact and non-contact thermometers, comprising a metallic body which comprises two opposite end surfaces, wherein at least a first type of hole which is drilled into the metallic body for the insertion of a temperature control probe, and at least a second type of hole for the insertion of a temperature probe are mounted on one end surface; and the other end surface is coated with material to perform as radiative source; a heating device, for heating the metallic body, and temperature control device, for controlling the heating power of the heating device and for controlling the temperature of the metallic body. The present invention could be utilized to calibrate both contact and non-contact thermometers. The objective of integrating two functions into one device and thereby saving costs and space could be achieved.Type: GrantFiled: June 9, 1999Date of Patent: February 27, 2001Assignee: Industrial Technology Research InstituteInventor: Shen-Jen Chen
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Patent number: 4598327Abstract: An improved servo control system for data track following of the read/write head in a magnetic recording system uses a pattern of segments of servo information slanted across the data tracks. The time of flight of the servo segment from occurrence of a reference pulse until the peak servo signal is read by the head is an indication of the position of the head in a direction perpendicular to the desired track. This time is compared with the known time of flight if the head were precisely over the centerline of the desired track and the time difference is used to generate a control signal to position the head over the track centerline. In an embodiment where each segment is slanted across only one track, the reference pulse is the beginning of the servo signal and the time measurement is the number of fixed frequency magnetic transitions read by the head in the servo segment.Type: GrantFiled: June 28, 1985Date of Patent: July 1, 1986Assignee: International Business Machines CorporationInventors: Shen Jen, William J. Kabelac
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Patent number: 4589037Abstract: An improved magnetic recording disk drive, in particular a flexible disk drive, includes a head positioning servo system which utilizes servo information recorded on the disk by the disk drive. The servo information is located within one of the data sectors and is in the form of a pattern of radially spaced-apart segments, each segment overlapping a number of data tracks and comprising magnetic transitions which increase in frequency in the radial direction to provide a digital head position error signal (PES). A similar segment is located in each of the other data sectors around the perimeter of the disk to provide track profile information so that the head positioning system can compensate for disk runout and distortion. The disk drive includes means for eliminating the effect of the amplitude of the readback signal from the servo and profile segments on the head positioning system, thus assuring a reliable PES at all radial locations on the disk and allowing interchangeability of disks among disk drives.Type: GrantFiled: March 18, 1985Date of Patent: May 13, 1986Assignee: International Business Machines CorporationInventors: Shen Jen, William J. Kabelac, Ian L. Sanders
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Patent number: D291811Type: GrantFiled: August 9, 1985Date of Patent: September 8, 1987Inventor: Yen-Shen Jen