Patents by Inventor Lun Ma

Lun Ma 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).

  • Patent number: 11942509
    Abstract: A light-emitting device comprises a substrate; a first light-emitting unit and a second light-emitting unit formed on the substrate, each of the first light-emitting unit and the second light-emitting unit comprises a first semiconductor layer, a second semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer, wherein the first light-emitting unit comprises a first semiconductor mesa and a first surrounding part surrounding the first semiconductor mesa, and the second light-emitting unit comprises a second semiconductor mesa and a second surrounding part surrounding the second semiconductor mesa; a trench formed between the first light-emitting unit and the second light-emitting unit and exposing the substrate; a first insulating layer comprising a first opening on the first surrounding part and a second opening on the second semiconductor layer of the second light-emitting unit; and a connecting electrode comprising a first connecting part on the first
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: March 26, 2024
    Assignee: EPISTAR CORPORATION
    Inventors: Chao-Hsing Chen, I-Lun Ma, Bo-Jiun Hu, Yu-Ling Lin, Chien-Chih Liao
  • Publication number: 20240014352
    Abstract: A light-emitting device includes a substrate including a top surface, a first side surface and a second side surface, wherein the first side surface and the second side surface of the substrate are respectively connected to two opposite sides of the top surface of the substrate; a semiconductor stack formed on the top surface of the substrate, the semiconductor stack including a first semiconductor layer, a second semiconductor layer, and an active layer formed between the first semiconductor layer and the second semiconductor layer; a first electrode pad formed adjacent to a first edge of the light-emitting device; and a second electrode pad formed adjacent to a second edge of the light-emitting device, wherein in a top view of the light-emitting device, the first edge and the second edge are formed on different sides or opposite sides of the light-emitting device, the first semiconductor layer adjacent to the first edge includes a first sidewall directly connected to the first side surface of the substrate,
    Type: Application
    Filed: September 20, 2023
    Publication date: January 11, 2024
    Inventors: Chao-Hsing CHEN, Cheng-Lin LU, Chih-Hao CHEN, Chi-Shiang HSU, I-Lun MA, Meng-Hsiang HONG, Hsin-Ying WANG, Kuo-Ching HUNG, Yi-Hung LIN
  • Patent number: 11799060
    Abstract: A light-emitting device includes a substrate including a top surface, a first side surface and a second side surface, wherein the first side surface and the second side surface of the substrate are respectively connected to two opposite sides of the top surface of the substrate; a semiconductor stack formed on the top surface of the substrate, the semiconductor stack including a first semiconductor layer, a second semiconductor layer, and an active layer formed between the first semiconductor layer and the second semiconductor layer; a first electrode pad formed adjacent to a first edge of the light-emitting device; and a second electrode pad formed adjacent to a second edge of the light-emitting device, wherein in a top view of the light-emitting device, the first edge and the second edge are formed on different sides or opposite sides of the light-emitting device, the first semiconductor layer adjacent to the first edge includes a first sidewall directly connected to the first side surface of the substrate,
    Type: Grant
    Filed: February 23, 2023
    Date of Patent: October 24, 2023
    Assignee: EPISTAR CORPORATION
    Inventors: Chao-Hsing Chen, Cheng-Lin Lu, Chih-Hao Chen, Chi-Shiang Hsu, I-Lun Ma, Meng-Hsiang Hong, Hsin-Ying Wang, Kuo-Ching Hung, Yi-Hung Lin
  • Publication number: 20230197904
    Abstract: A light-emitting device includes a substrate including a top surface, a first side surface and a second side surface, wherein the first side surface and the second side surface of the substrate are respectively connected to two opposite sides of the top surface of the substrate; a semiconductor stack formed on the top surface of the substrate, the semiconductor stack including a first semiconductor layer, a second semiconductor layer, and an active layer formed between the first semiconductor layer and the second semiconductor layer; a first electrode pad formed adjacent to a first edge of the light-emitting device; and a second electrode pad formed adjacent to a second edge of the light-emitting device, wherein in a top view of the light-emitting device, the first edge and the second edge are formed on different sides or opposite sides of the light-emitting device, the first semiconductor layer adjacent to the first edge includes a first sidewall directly connected to the first side surface of the substrate,
    Type: Application
    Filed: February 23, 2023
    Publication date: June 22, 2023
    Inventors: Chao-Hsing CHEN, Cheng-Lin LU, Chih-Hao CHEN, Chi-Shiang HSU, I-Lun MA, Meng-Hsiang HONG, Hsin-Ying WANG, Kuo-Ching HUNG, Yi-Hung LIN
  • Patent number: 11621374
    Abstract: A light-emitting device includes a substrate including a top surface, a first side surface and a second side surface, wherein the first side surface and the second side surface of the substrate are respectively connected to two opposite sides of the top surface of the substrate; a semiconductor stack formed on the top surface of the substrate, the semiconductor stack including a first semiconductor layer, a second semiconductor layer, and an active layer formed between the first semiconductor layer and the second semiconductor layer; a first electrode pad formed adjacent to a first edge of the light-emitting device; and a second electrode pad formed adjacent to a second edge of the light-emitting device, wherein in a top view of the light-emitting device, the first edge and the second edge are formed on different sides or opposite sides of the light-emitting device, the first semiconductor layer adjacent to the first edge includes a first sidewall directly connected to the first side surface of the substrate,
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: April 4, 2023
    Assignee: EPISTAR CORPORATION
    Inventors: Chao-Hsing Chen, Cheng-Lin Lu, Chih-Hao Chen, Chi-Shiang Hsu, I-Lun Ma, Meng-Hsiang Hong, Hsin-Ying Wang, Kuo-Ching Hung, Yi-Hung Lin
  • Patent number: 11583986
    Abstract: An air-path structure of a pneumatic nail gun includes a main chamber formed in a gun body, a piston driving chamber and a timekeeping chamber that continuously releases pressurized air to the outside. The gun body is equipped with a trigger valve and a bar valve, and a security chamber and an auxiliary chamber are formed in the trigger valve; the trigger valve controls the pressurized air in the piston driving chamber to be discharged to the outside; and the bar valve controls the pressurized air in the main chamber to go into the piston driving chamber, the timekeeping chamber and the auxiliary chamber. The security chamber is permanently connected to the main chamber for concentrating upon the pressurized air, and the bar valve controls the pressurized air in the main chamber to be discharged into the timekeeping chamber, so as to improve the safety of pneumatic nail gun when used.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: February 21, 2023
    Assignee: DE POAN PNEUMATIC CORP.
    Inventors: I-Tsung Wu, Chia-Sheng Liang, Hai-Lun Ma, Kai-Peng Hsien
  • Publication number: 20230043575
    Abstract: Disclosed is a method for manufacturing a contact hole, a semiconductor structure and electronic equipment. The method includes: forming a mask layer on an upper end face of a first oxide layer of the semiconductor structure, and exposing a pattern of a target contact hole on the mask layer; exposing a portion, corresponding to a target contact hole, of an upper end face of a contact layer and a portion, corresponding to the target contact hole, of an upper end face of an upper layer structure; depositing a second insulation layer on an etched surface, and depositing a second oxide layer on the second insulation layer; and removing portions, above the upper end face of the first oxide layer, of the second insulation layer and the second oxide layer, and removing a part of the contact layer, and exposing an upper end face of a zeroth layer contact.
    Type: Application
    Filed: January 13, 2022
    Publication date: February 9, 2023
    Applicant: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventors: Ran LI, CHING-LUN MA, Leilei DUAN, Xinru HAN
  • Publication number: 20220139902
    Abstract: A semiconductor structure includes a substrate, a gate dielectric layer and a conductive layer that are stacked, and the gate dielectric layer is located between the substrate and the conductive layer. The substrate includes a semiconductor substrate and an insulating substrate which are arranged on the same layer. The conductive layer includes: a gate conductor layer, a projection of which on the substrate covers the semiconductor substrate, and an external connecting layer, a projection of which on the substrate covers the insulating substrate. A groove is formed on a bottom surface, towards the substrate, of the external connecting layer and the groove is filled with an insulator.
    Type: Application
    Filed: August 26, 2021
    Publication date: May 5, 2022
    Applicant: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventor: CHING-LUN MA
  • Patent number: 11174428
    Abstract: Disclosed herein are composite materials that comprise one or more nanophosphors capable of converting higher frequency, lower wavelength radiation into visible light. As used, the produced visible light enhances the amount of visible light already present from natural or artificial sources.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: November 16, 2021
    Assignee: THE BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Wei Chen, Lun Ma
  • Publication number: 20210313388
    Abstract: A light-emitting device comprises a substrate; a first light-emitting unit and a second light-emitting unit formed on the substrate, each of the first light-emitting unit and the second light-emitting unit comprises a first semiconductor layer, a second semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer, wherein the first light-emitting unit comprises a first semiconductor mesa and a first surrounding part surrounding the first semiconductor mesa, and the second light-emitting unit comprises a second semiconductor mesa and a second surrounding part surrounding the second semiconductor mesa; a trench formed between the first light-emitting unit and the second light-emitting unit and exposing the substrate; a first insulating layer comprising a first opening on the first surrounding part and a second opening on the second semiconductor layer of the second light-emitting unit; and a connecting electrode comprising a first connecting part on the first
    Type: Application
    Filed: June 15, 2021
    Publication date: October 7, 2021
    Inventors: Chao-Hsing CHEN, I-Lun MA, Bo-Jiun HU, Yu-Ling LIN, Chien-Chih LIAO
  • Publication number: 20210291334
    Abstract: An air-path structure of a pneumatic nail gun, including a main chamber of pressurized air formed in a gun body, a piston driving chamber and a timekeeping chamber that continuously releases pressurized air to the outside, the gun body is equipped with a trigger valve and a bar valve, and a security chamber and an auxiliary chamber are formed in the trigger valve; the trigger valve can control the pressurized air in the piston driving chamber to be discharged to the outside; and the bar valve can control the pressurized air in the main chamber to go into the piston driving chamber, the timekeeping chamber and the auxiliary chamber; wherein the security chamber is permanently connected to the main chamber for concentrating upon the pressurized air, and the bar valve can control the pressurized air in the main chamber to be discharged into the timekeeping chamber, so as to improve the safety of traditional pneumatic nail guns when used.
    Type: Application
    Filed: March 15, 2021
    Publication date: September 23, 2021
    Inventors: I-Tsung Wu, Chia-Sheng Liang, Hai-Lun Ma, Kai-Peng Hsien
  • Publication number: 20210273137
    Abstract: A light-emitting device includes a substrate including a top surface, a first side surface and a second side surface, wherein the first side surface and the second side surface of the substrate are respectively connected to two opposite sides of the top surface of the substrate; a semiconductor stack formed on the top surface of the substrate, the semiconductor stack including a first semiconductor layer, a second semiconductor layer, and an active layer formed between the first semiconductor layer and the second semiconductor layer; a first electrode pad formed adjacent to a first edge of the light-emitting device; and a second electrode pad formed adjacent to a second edge of the light-emitting device, wherein in a top view of the light-emitting device, the first edge and the second edge are formed on different sides or opposite sides of the light-emitting device, the first semiconductor layer adjacent to the first edge includes a first sidewall directly connected to the first side surface of the substrate,
    Type: Application
    Filed: May 14, 2021
    Publication date: September 2, 2021
    Inventors: Chao-Hsing CHEN, Cheng-Lin LU, Chih-Hao CHEN, Chi-Shiang HSU, I-Lun MA, Meng-Hsiang HONG, Hsin-Ying WANG, Kuo-Ching HUNG, Yi-Hung LIN
  • Patent number: 11063087
    Abstract: A light-emitting device includes a substrate; a first light-emitting unit and a second light-emitting unit formed on the substrate, each of the first light-emitting unit and the second light-emitting unit includes a first semiconductor layer, a second semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer; a trench formed between the first light-emitting unit and the second light-emitting unit, and exposing the substrate; and a connecting electrode including a first connecting part on the first light-emitting unit and connected to the first semiconductor layer of the first light-emitting unit, a second connecting part on the second light-emitting unit and connected to the second semiconductor layer of the second light-emitting unit, and a third connecting part formed in the trench to connect the first connecting part and the second connecting part.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: July 13, 2021
    Assignee: EPISTAR CORPORATION
    Inventors: Chao-Hsing Chen, I-Lun Ma, Bo-Jiun Hu, Yu-Ling Lin, Chien-Chih Liao
  • Patent number: 11038085
    Abstract: A light-emitting device includes a substrate including a top surface, a first side surface and a second side surface, wherein the first side surface and the second side surface of the substrate are respectively connected to two opposite sides of the top surface of the substrate; a semiconductor stack formed on the top surface of the substrate, the semiconductor stack including a first semiconductor layer, a second semiconductor layer, and an active layer formed between the first semiconductor layer and the second semiconductor layer; a first electrode pad formed adjacent to a first edge of the light-emitting device; and a second electrode pad formed adjacent to a second edge of the light-emitting device, wherein in a top view of the light-emitting device, the first edge and the second edge are formed on different sides or opposite sides of the light-emitting device, the first semiconductor layer adjacent to the first edge includes a first sidewall directly connected to the first side surface of the substrate,
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: June 15, 2021
    Assignee: EPISTAR CORPORATION
    Inventors: Chao-Hsing Chen, Cheng-Lin Lu, Chih-Hao Chen, Chi-Shiang Hsu, I-Lun Ma, Meng-Hsiang Hong, Hsin-Ying Wang, Kuo-Ching Hung, Yi-Hung Lin
  • Patent number: 10804435
    Abstract: A light-emitting device includes a semiconductor stack including a first semiconductor layer, a second semiconductor layer, and an active layer emitting an UV light, formed between the first semiconductor layer and the second semiconductor layer; a first transparent conductive layer formed on the second semiconductor layer, the first transparent conductive layer including metal oxide; and a second transparent conductive layer formed on the first transparent conductive layer, the second transparent conductive layer including graphene, wherein the first transparent conductive layer is continuously formed over a top surface of the second semiconductor layer, the first transparent conductive layer comprises a thickness smaller than 10 nm.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: October 13, 2020
    Assignee: EPISTAR CORPORATION
    Inventors: Chang-Tai Hisao, I-Lun Ma, Hao-Yu Chen, Shu-Fen Hu, Ru-Shi Liu, Chih-Ming Wang, Chun-Yuan Chen, Yih-Hua Renn, Chien-Hsin Wang, Yung-Hsiang Lin
  • Patent number: 10661095
    Abstract: Disclosed is the use of copper cysteamine nanoparticles for use in photodynamic cancer therapy. The disclosed methods of treatment utilize microwave radiation as a means for activating the copper cysteamine photosensitizer.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: May 26, 2020
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Wei Chen, Lun Ma
  • Publication number: 20200044116
    Abstract: A light-emitting device includes a substrate including a top surface, a first side surface and a second side surface, wherein the first side surface and the second side surface of the substrate are respectively connected to two opposite sides of the top surface of the substrate; a semiconductor stack formed on the top surface of the substrate, the semiconductor stack including a first semiconductor layer, a second semiconductor layer, and an active layer formed between the first semiconductor layer and the second semiconductor layer; a first electrode pad formed adjacent to a first edge of the light-emitting device; and a second electrode pad formed adjacent to a second edge of the light-emitting device, wherein in a top view of the light-emitting device, the first edge and the second edge are formed on different sides or opposite sides of the light-emitting device, the first semiconductor layer adjacent to the first edge includes a first sidewall directly connected to the first side surface of the substrate,
    Type: Application
    Filed: August 1, 2019
    Publication date: February 6, 2020
    Inventors: Chao-Hsing CHEN, Cheng-Lin LU, Chih-Hao CHEN, Chi-Shiang HSU, I-Lun MA, Meng-Hsiang HONG, Hsin-Ying WANG, Kuo-Ching HUNG, Yi-Hung LIN
  • Publication number: 20200020739
    Abstract: A light-emitting device comprises a substrate; a first light-emitting unit and a second light-emitting unit formed on the substrate, each of the first light-emitting unit and the second light-emitting unit comprises a first semiconductor layer, a second semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer, wherein the first light-emitting unit comprises a first semiconductor mesa and a first surrounding part surrounding the first semiconductor mesa, and the second light-emitting unit comprises a second semiconductor mesa and a second surrounding part surrounding the second semiconductor mesa; a trench formed between the first light-emitting unit and the second light-emitting unit and exposing the substrate; a first insulating layer comprising a first opening on the first surrounding part and a second opening on the second semiconductor layer of the second light-emitting unit; and a connecting electrode comprising a first connecting part on the first
    Type: Application
    Filed: July 12, 2019
    Publication date: January 16, 2020
    Inventors: Chao-Hsing CHEN, I-Lun MA, Bo-Jiun HU, Yu-Ling LIN, Chien-Chih LIAO
  • Publication number: 20200008668
    Abstract: A biomedical information processing system using an application program (APP) collaborated with an ocular temperature measurement technique includes an electronic device and a remote device. At least one user respectively holds an ocular temperature sensing device connected with the electronic device installed with an application program (APP). The electronic device exchanges information with the remote device. The ocular temperature sensing device acquires an instant ocular temperature measurement of a user, which is transmitted to the remote device through the APP. The remote device performs a characteristics comparison procedure according to a piece of comparison item information selected by the user on the APP to generate a comparison result. When the electronic device receives the comparison result from the remote device, the user can view the comparison result and create a tracking record through the electronic device for users to be aware of their eye health conditions at any time.
    Type: Application
    Filed: August 23, 2018
    Publication date: January 9, 2020
    Inventors: HORNG-JI LAI, TE-LUN MA, LI-PING YU, HSIANG-CHING LEE
  • Patent number: 10383940
    Abstract: Structure and luminescence properties of a new Cu-Cysteamine (Cu-Cy) crystal material are provided. The crystal structure of the Cu-Cy is determined by single crystal X-ray diffraction. It is found that the compound crystallizes in the monoclinic space group C2/c and cell parameters are a=7.5510(4) ?, b=16.9848(7) ?, c=7.8364(4) ?, ?=104.798(3)°. The new Cu-Cy crystal material of the invention is also useful for treatment of cancer.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: August 20, 2019
    Assignee: THE BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Wei Chen, Lun Ma