Patents by Inventor Kui Lim
Kui Lim 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: 20230341331Abstract: The application provides a gemstone testing apparatus for testing a specimen. The gemstone testing apparatus includes a handheld casing, a plurality of light sources, a test probe, a photodetector, a processor unit, and a display unit. The test probe is placed at one end of the handheld casing. A first end of the test probe is placed outside the handheld casing. The plurality of light sources is provided for emitting light rays towards an area that is in the vicinity of the first end. The first end is adapted for receiving light rays from the specimen and for transmitting the light rays to a second end of the test probe. The photodetector is arranged to measure an intensity of the light rays from the second end. The processor unit is provided for determining a material of the specimen in accordance to a measurement of the intensity of the light rays.Type: ApplicationFiled: April 25, 2023Publication date: October 26, 2023Applicant: Jubilee Diamond InstrumentInventor: Kui Lim Tam
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Patent number: 11668654Abstract: The application provides a gemstone testing apparatus for testing a specimen. The gemstone testing apparatus includes a handheld casing, a plurality of light sources, a test probe, a photodetector, a processor unit, and a display unit. The test probe is placed at one end of the handheld casing. A first end of the test probe is placed outside the handheld casing. The plurality of light sources is provided for emitting light rays towards an area that is in the vicinity of the first end. The first end is adapted for receiving light rays from the specimen and for transmitting the light rays to a second end of the test probe. The photodetector is arranged to measure an intensity of the light rays from the second end. The processor unit is provided for determining a material of the specimen in accordance to a measurement of the intensity of the light rays.Type: GrantFiled: May 18, 2021Date of Patent: June 6, 2023Assignee: Jubilee Diamond Instrument (S) Pte. LtdInventor: Kui Lim Tam
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Publication number: 20210270747Abstract: The application provides a gemstone testing apparatus for testing a specimen. The gemstone testing apparatus includes a handheld casing, a plurality of light sources, a test probe, a photodetector, a processor unit, and a display unit. The test probe is placed at one end of the handheld casing. A first end of the test probe is placed outside the handheld casing. The plurality of light sources is provided for emitting light rays towards an area that is in the vicinity of the first end. The first end is adapted for receiving light rays from the specimen and for transmitting the light rays to a second end of the test probe. The photodetector is arranged to measure an intensity of the light rays from the second end. The processor unit is provided for determining a material of the specimen in accordance to a measurement of the intensity of the light rays.Type: ApplicationFiled: May 18, 2021Publication date: September 2, 2021Applicant: Jubilee Diamond InstrumentInventor: Kui Lim Tam
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Patent number: 10989667Abstract: The application provides a diamond testing device. The testing device includes a casing, a movable specimen holder, an illumination unit, a light sensor unit, and a computing processor. In a closed position, the casing encloses the specimen holder, the illumination unit, and the light sensor unit.Type: GrantFiled: May 31, 2018Date of Patent: April 27, 2021Assignee: Jubilee Diamond Instrument (S) Pte. Ltd.Inventor: Kui Lim Tam
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Publication number: 20200400646Abstract: The application provides an improved gemstone testing apparatus for testing a gemstone specimen. The gemstone testing apparatus includes a handheld casing, a processor unit, a first gemstone test device, a second gemstone test device, and a display unit. The first gemstone test device includes a first test probe and a thermal conductivity test module. The second gemstone test device includes a second test probe and a light absorption module.Type: ApplicationFiled: August 10, 2020Publication date: December 24, 2020Inventor: Kui Lim Tam
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Patent number: 10859559Abstract: The application provides an improved gemstone testing apparatus for testing a gemstone specimen. The gemstone testing apparatus includes a handheld casing, a processor unit, a first gemstone test device, a second gemstone test device, and a display unit. The first gemstone test device includes a first test probe and a thermal conductivity test module. The second gemstone test device includes a second test probe and a light absorption module.Type: GrantFiled: August 10, 2020Date of Patent: December 8, 2020Assignee: Jubilee Diamond Instrument(s) Pte. Ltd.Inventor: Kui Lim Tam
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Publication number: 20200371041Abstract: The application provides a gemstone testing apparatus for testing a specimen. The gemstone testing apparatus includes a handheld casing, a plurality of light sources, a test probe, a photodetector, a processor unit, and a display unit. The test probe is placed at one end of the handheld casing. A first end of the test probe is placed outside the handheld casing. The plurality of light sources is provided for emitting light rays towards an area that is in the vicinity of the first end. The first end is adapted for receiving light rays from the specimen and for transmitting the light rays to a second end of the test probe. The photodetector is arranged to measure an intensity of the light rays from the second end. The processor unit is provided for determining a material of the specimen in accordance to a measurement of the intensity of the light rays.Type: ApplicationFiled: December 19, 2017Publication date: November 26, 2020Inventor: Kui Lim Tam
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Patent number: 10837915Abstract: The application provides a gemstone testing apparatus for testing a specimen. The gemstone testing apparatus includes a handheld casing, a plurality of light sources, a test probe, a photodetector, a processor unit, and a display unit. The test probe is placed at one end of the handheld casing. A first end of the test probe is placed outside the handheld casing. The plurality of light sources is provided for emitting light rays towards an area that is in the vicinity of the first end. The first end is adapted for receiving light rays from the specimen and for transmitting the light rays to a second end of the test probe. The photodetector is arranged to measure an intensity of the light rays from the second end. The processor unit is provided for determining a material of the specimen in accordance to a measurement of the intensity of the light rays.Type: GrantFiled: March 16, 2020Date of Patent: November 17, 2020Assignee: Jubilee Diamond Instrument (S) Pte. LtdInventor: Kui Lim Tam
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Publication number: 20200249176Abstract: The application provides a diamond testing device. The testing device includes a casing, a movable specimen holder, an illumination unit, a light sensor unit, and a computing processor. In a closed position, the casing encloses the specimen holder, the illumination unit, and the light sensor unit.Type: ApplicationFiled: May 31, 2018Publication date: August 6, 2020Inventor: Kui Lim Tam
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Publication number: 20200217803Abstract: The application provides a gemstone testing apparatus for testing a specimen. The gemstone testing apparatus includes a handheld casing, a plurality of light sources, a test probe, a photodetector, a processor unit, and a display unit. The test probe is placed at one end of the handheld casing. A first end of the test probe is placed outside the handheld casing. The plurality of light sources is provided for emitting light rays towards an area that is in the vicinity of the first end. The first end is adapted for receiving light rays from the specimen and for transmitting the light rays to a second end of the test probe. The photodetector is arranged to measure an intensity of the light rays from the second end. The processor unit is provided for determining a material of the specimen in accordance to a measurement of the intensity of the light rays.Type: ApplicationFiled: March 16, 2020Publication date: July 9, 2020Inventor: Kui Lim Tam
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Patent number: 10247677Abstract: A diamond identification apparatus is disclosed, the diamond identification apparatus comprising a support platform for receiving a gemstone at an observation position, a first light source arranged to emit light at a predetermined angle towards the observation position and a first photodiode arranged to detect an amount of light from the first light source being reflected from the gemstone at the observation position. The diamond identification apparatus further comprises a second light source arranged to emit light towards the observation position, a second photodiode arranged to detect light from the second light source that passes through the gemstone at the observation position and a processor unit.Type: GrantFiled: October 31, 2018Date of Patent: April 2, 2019Assignee: Jubilee Diamond Instrument(S) Pte. Ltd.Inventor: Kui Lim Tam
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Patent number: 10228330Abstract: A gemstone testing apparatus with an apparatus body, a reflector housing with a light reflective layer at its interior surface, a transparent housing portion that is transparent for ultraviolet light, and a detector probe that is protruding from the transparent housing portion. An UV light emitter is provided within the reflector housing, which is adapted for directing the UV light through the transparent housing portion into the vicinity of a tip of the detector probe.Type: GrantFiled: September 12, 2018Date of Patent: March 12, 2019Assignee: Jubilee Diamond Instrument (S) Pte. Ltd.Inventor: Kui Lim Tam
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Publication number: 20190072495Abstract: A diamond identification apparatus is disclosed, the diamond identification apparatus comprising a support platform for receiving a gemstone at an observation position, a first light source arranged to emit light at a predetermined angle towards the observation position and a first photodiode arranged to detect an amount of light from the first light source being reflected from the gemstone at the observation position. The diamond identification apparatus further comprises a second light source arranged to emit light towards the observation position, a second photodiode arranged to detect light from the second light source that passes through the gemstone at the observation position and a processor unit.Type: ApplicationFiled: October 31, 2018Publication date: March 7, 2019Inventor: Kui Lim Tam
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Publication number: 20190011373Abstract: A gemstone testing apparatus with an apparatus body, a reflector housing with a light reflective layer at its interior surface, a transparent housing portion that is transparent for ultraviolet light, and a detector probe that is protruding from the transparent housing portion. An UV light emitter is provided within the reflector housing, which is adapted for directing the UV light through the transparent housing portion into the vicinity of a tip of the detector probe.Type: ApplicationFiled: September 12, 2018Publication date: January 10, 2019Inventor: Kui Lim Tam
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Patent number: 10161878Abstract: A diamond identification apparatus is disclosed, the diamond identification apparatus comprising a support platform for receiving a gemstone at an observation position, a first light source arranged to emit light at a predetermined angle towards the observation position and a first photodiode arranged to detect an amount of light from the first light source being reflected from the gemstone at the observation position. The diamond identification apparatus further comprises a second light source arranged to emit light towards the observation position, a second photodiode arranged to detect light from the second light source that passes through the gemstone at the observation position and a processor unit.Type: GrantFiled: July 7, 2016Date of Patent: December 25, 2018Assignee: Jubilee Diamond Instrument (S) Pte. Ltd.Inventor: Kui Lim Tam
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Patent number: D826753Type: GrantFiled: June 2, 2017Date of Patent: August 28, 2018Assignee: Jubilee Diamond Instrument LimitedInventor: Kui Lim Tam
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Patent number: D826754Type: GrantFiled: June 2, 2017Date of Patent: August 28, 2018Assignee: Jubilee Diamond Instrument LimitedInventor: Kui Lim Tam
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Patent number: D826755Type: GrantFiled: June 2, 2017Date of Patent: August 28, 2018Assignee: Jubilee Diamond Instrument LimitedInventor: Kui Lim Tam
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Patent number: D878229Type: GrantFiled: December 7, 2018Date of Patent: March 17, 2020Assignee: Jubilee Diamond Instrument LimitedInventor: Kui Lim Tam
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Patent number: D984293Type: GrantFiled: August 9, 2021Date of Patent: April 25, 2023Assignee: Jubilee Diamond Instrument LimitedInventor: Kui Lim Tam