Patents by Inventor Preecha Sudachun
Preecha Sudachun 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: 11948610Abstract: A suspension is described. The suspension includes a base plate and a load beam coupled to the base plate. The base plate includes a distal elongated element and a proximal elongated element. The distal elongated element includes at least one non-straight baseplate edge and the proximal elongated element includes at least one non-straight baseplate edge. The load beam includes a first mounting shelf and a second mounting shelf. The load beam is coupled to the base plate such that the first mounting shelf is exposed adjacent to the distal elongated element, and the second mounting shelf is exposed adjacent to the proximal elongated element. The first and second mounting shelves are configured to receive an actuator, such that an edge of the actuator and the at least one non-straight baseplate edge forms a gap.Type: GrantFiled: September 15, 2022Date of Patent: April 2, 2024Assignee: Magnecomp CorporationInventors: Kuen Chee Ee, Ekaratch Pankaew, Preecha Sudachun
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Publication number: 20230015787Abstract: A suspension is described. The suspension includes a base plate and a load beam coupled to the base plate. The base plate includes a distal elongated element and a proximal elongated element. The distal elongated element includes at least one non-straight baseplate edge and the proximal elongated element includes at least one non-straight baseplate edge. The load beam includes a first mounting shelf and a second mounting shelf. The load beam is coupled to the base plate such that the first mounting shelf is exposed adjacent to the distal elongated element, and the second mounting shelf is exposed adjacent to the proximal elongated element. The first and second mounting shelves are configured to receive an actuator, such that an edge of the actuator and the at least one non-straight baseplate edge forms a gap.Type: ApplicationFiled: September 15, 2022Publication date: January 19, 2023Inventors: Kuen Chee Ee, Ekaratch Pankaew, Preecha Sudachun
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Patent number: 11501797Abstract: A suspension is described. The suspension includes a base plate and a load beam coupled to the base plate. The base plate includes a distal elongated element and a proximal elongated element. The distal elongated element includes at least one non-straight baseplate edge and the proximal elongated element includes at least one non-straight baseplate edge. The load beam includes a first mounting shelf and a second mounting shelf. The load beam is coupled to the base plate such that the first mounting shelf is exposed adjacent to the distal elongated element, and the second mounting shelf is exposed adjacent to the proximal elongated element. The first and second mounting shelves are configured to receive an actuator, such that an edge of the actuator and the at least one non-straight baseplate edge forms a gap.Type: GrantFiled: May 13, 2021Date of Patent: November 15, 2022Assignee: Magnecomp CorporationInventors: Kuen Chee Ee, Ekaratch Pankaew, Preecha Sudachun
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Patent number: 11348608Abstract: A method of manufacturing a tri-stage assembly is described herein. The method includes attaching a first microactuator and a second microactuator to a trace gimbal to a flexure during a PZT on flexure process (POF). The first microactuator is located at a distal end of the flexure and the second microactuator located at a proximal end of the flexure. The method also includes welding the trace gimbal to a baseplate, and a load beam to secure the trace gimbal including the first microactuator and the second microactuator.Type: GrantFiled: February 2, 2021Date of Patent: May 31, 2022Assignee: Magnecomp CorporationInventors: Peter Hahn, David Glaess, Kuen Chee Ee, Benjapa Tanampee, Keith Allan Vanderlee, Preecha Sudachun, Johnathan Phu
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Publication number: 20210358518Abstract: A suspension is described. The suspension includes a base plate and a load beam coupled to the base plate. The base plate includes a distal elongated element and a proximal elongated element. The distal elongated element includes at least one non-straight baseplate edge and the proximal elongated element includes at least one non-straight baseplate edge. The load beam includes a first mounting shelf and a second mounting shelf. The load beam is coupled to the base plate such that the first mounting shelf is exposed adjacent to the distal elongated element, and the second mounting shelf is exposed adjacent to the proximal elongated element. The first and second mounting shelves are configured to receive an actuator, such that an edge of the actuator and the at least one non-straight baseplate edge forms a gap.Type: ApplicationFiled: May 13, 2021Publication date: November 18, 2021Inventors: Kuen Chee Ee, Ekaratch Pankaew, Preecha Sudachun
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Publication number: 20210249040Abstract: A method of manufacturing a tri-stage assembly is provided. The method includes attaching a first microactuator and a second microactuator to a trace gimbal to a flexure during a PZT on flexure process (POF). The first microactuator is located at a distal end of the flexure and the second microactuator located at a proximal end of the flexure. The method also includes welding the trace gimbal to a baseplate, and a load beam to secure the trace gimbal including the first microactuator and the second microactuator.Type: ApplicationFiled: February 2, 2021Publication date: August 12, 2021Inventors: Peter Hahn, David Glaess, Kuen Chee Ee, Benjapa Tanampee, Keith Allan Vanderlee, Preecha Sudachun, Johnathan Phu
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Publication number: 20210241791Abstract: A dielectric layer configured to overlay a spring metal layer in a suspension assembly is described. The dielectric layer includes a tongue portion including a proximate end and a distal end, trace portions extending from the tongue portion, and an aperture aligned with the void and defined by the tongue portion. The aperture includes an elongated opening with opposing ends partially aligning with the central opening of the void. The aperture further includes slits extending from the opposing ends of the elongated opening and at least partially aligned with slits of the void in the spring metal layer.Type: ApplicationFiled: January 26, 2021Publication date: August 5, 2021Inventors: Ekaratch Pankaew, Kuen Chee Ee, Preecha Sudachun, David Glaess, Chanatkarn Angsutanasombat
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Patent number: 10916265Abstract: A piezoelectric actuator assembly is described. The piezoelectric actuator assembly includes a first, second and third active piezoelectric layers. The first layer includes a top surface and a bottom surface. The second layer includes a top surface and a bottom surface over the top surface of the first layer. The third layer includes a top surface and a bottom surface over the top surface of the second layer. The first and second layers can define a first effective electrode length. Similarly, the second and third layers can define a second effective electrode length configured to be longer than the first effective electrode length.Type: GrantFiled: June 24, 2020Date of Patent: February 9, 2021Assignee: Magnecomp CorporationInventors: Long Zhang, Kuen Chee Ee, David Glaess, Preecha Sudachun, Ekaratch Pankaew
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Publication number: 20210012795Abstract: A piezoelectric actuator assembly is described. The piezoelectric actuator assembly includes a first, second and third active piezoelectric layers. The first layer includes a top surface and a bottom surface. The second layer includes a top surface and a bottom surface over the top surface of the first layer. The third layer includes a top surface and a bottom surface over the top surface of the second layer. The first single and second layers can define a first effective electrode length. Similarly, the second and third layers can define a second effective electrode length configured to be longer than the first effective electrode length.Type: ApplicationFiled: June 24, 2020Publication date: January 14, 2021Inventors: Long Zhang, Kuen Chee Ee, David Glaess, Preecha Sudachun, Ekaratch Pankaew
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Patent number: 9214176Abstract: A PZT limiter in a microactuator type dual stage actuated (DSA) suspension limits travel of the PZT, particularly of the cantilevered end of the PZT and particularly during non-operational shock. The PZT limiter thus limits the stresses including bending placed on the PZT during the shock event and thus helps to prevent cracking of the PZT. Additionally, by limiting displacement of the PZT, the limiter improves the mechanic and electrical performance of the suspension during operation.Type: GrantFiled: July 23, 2015Date of Patent: December 15, 2015Assignee: MAGNECOMP CORPORATIONInventors: Ajay Sharma, Preecha Sudachun, Ekkapong Simtong