Koichi MAEGAWA

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
N-type silicon single crystal production method, n-type silicon sin...
- Patent number 12,252,803
- Issue date Mar 18, 2025
- Sumco Corporation
- Koichi Maegawa
- C30 - CRYSTAL GROWTH
Information Patent Grant
Method for producing silicon single crystal
- Patent number 12,116,691
- Issue date Oct 15, 2024
- Sumco Corporation
- Yasufumi Kawakami
- C30 - CRYSTAL GROWTH
Information Patent Grant
Method for producing silicon single crystal
- Patent number 11,814,745
- Issue date Nov 14, 2023
- Sumco Corporation
- Yasufumi Kawakami
- C30 - CRYSTAL GROWTH
Information Patent Grant
N-type silicon single crystal production method, n-type silicon sin...
- Patent number 11,702,760
- Issue date Jul 18, 2023
- Sumco Corporation
- Koichi Maegawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Deposit removing device and deposit removing method
- Patent number 11,639,560
- Issue date May 2, 2023
- Sumco Corporation
- Fukuo Ogawa
- B08 - CLEANING
Information Patent Grant
Cleaning method, method for producing silicon single crystal, and c...
- Patent number 11,426,775
- Issue date Aug 30, 2022
- Sumco Corporation
- Koichi Maegawa
- B08 - CLEANING
Information Patent Grant
N-type silicon single crystal production method, n-type silicon sin...
- Patent number 11,377,755
- Issue date Jul 5, 2022
- Sumco Corporation
- Koichi Maegawa
- C30 - CRYSTAL GROWTH
Information Patent Grant
Method for producing silicon single crystal
- Patent number 11,242,617
- Issue date Feb 8, 2022
- Sumco Corporation
- Koichi Maegawa
- C30 - CRYSTAL GROWTH
Information Patent Grant
Method for manufacturing silicon single crystal, flow straightening...
- Patent number 10,916,425
- Issue date Feb 9, 2021
- Sumco Corporation
- Fukuo Ogawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electromagnetic casting method and apparatus for polycrystalline si...
- Patent number 9,553,221
- Issue date Jan 24, 2017
- Sumco Corporation
- Koichi Maegawa
- C30 - CRYSTAL GROWTH
Information Patent Grant
Continuous casting method of silicon ingot
- Patent number 9,080,814
- Issue date Jul 14, 2015
- Sumco Corporation
- Mitsuo Yoshihara
- C30 - CRYSTAL GROWTH

Patents Applicationslast 30 patents

Information Patent Application
N-TYPE SILICON SINGLE CRYSTAL PRODUCTION METHOD, N-TYPE SILICON SIN...
- Publication number 20250179682
- Publication date Jun 5, 2025
- SUMCO CORPORATION
- Koichi MAEGAWA
- C30 - CRYSTAL GROWTH
Information Patent Application
METHOD FOR PRODUCING SILICON SINGLE CRYSTAL
- Publication number 20240026564
- Publication date Jan 25, 2024
- SUMCO CORPORATION
- Yasufumi KAWAKAMI
- C30 - CRYSTAL GROWTH
Information Patent Application
N-TYPE SILICON SINGLE CRYSTAL PRODUCTION METHOD, N-TYPE SILICON SIN...
- Publication number 20230295835
- Publication date Sep 21, 2023
- SUMCO CORPORATION
- Koichi MAEGAWA
- C30 - CRYSTAL GROWTH
Information Patent Application
DEPOSIT REMOVING DEVICE AND DEPOSIT REMOVING METHOD
- Publication number 20220267929
- Publication date Aug 25, 2022
- SUMCO CORPORATION
- Fukuo OGAWA
- B08 - CLEANING
Information Patent Application
METHOD FOR PRODUCING SILICON SINGLE CRYSTAL
- Publication number 20210040642
- Publication date Feb 11, 2021
- SUMCO CORPORATION
- Yasufumi KAWAKAMI
- C30 - CRYSTAL GROWTH
Information Patent Application
CLEANING METHOD, METHOD FOR PRODUCING SILICON SINGLE CRYSTAL, AND C...
- Publication number 20200346258
- Publication date Nov 5, 2020
- SUMCO CORPORATION
- Koichi MAEGAWA
- B08 - CLEANING
Information Patent Application
N-TYPE SILICON SINGLE CRYSTAL PRODUCTION METHOD, N-TYPE SILICON SIN...
- Publication number 20200224329
- Publication date Jul 16, 2020
- SUMCO CORPORATION
- Koichi MAEGAWA
- C30 - CRYSTAL GROWTH
Information Patent Application
N-TYPE SILICON SINGLE CRYSTAL PRODUCTION METHOD, N-TYPE SILICON SIN...
- Publication number 20200141024
- Publication date May 7, 2020
- SUMCO CORPORATION
- Koichi MAEGAWA
- C30 - CRYSTAL GROWTH
Information Patent Application
SINGLE CRYSTAL SILICON PRODUCTION METHOD, EPITAXIAL SILICON WAFER P...
- Publication number 20200135460
- Publication date Apr 30, 2020
- SUMCO CORPORATION
- Yasuhito NARUSHIMA
- C30 - CRYSTAL GROWTH
Information Patent Application
METHOD FOR PRODUCING SILICON SINGLE CRYSTAL
- Publication number 20200087814
- Publication date Mar 19, 2020
- SUMCO CORPORATION
- Koichi MAEGAWA
- C30 - CRYSTAL GROWTH
Information Patent Application
METHOD FOR MANUFACTURING SILICON SINGLE CRYSTAL, FLOW STRAIGHTENING...
- Publication number 20200027732
- Publication date Jan 23, 2020
- SUMCO CORPORATION
- Fukuo OGAWA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ELECTROMAGNETIC CASTING METHOD AND APPARATUS FOR POLYCRYSTALLINE SI...
- Publication number 20130255315
- Publication date Oct 3, 2013
- Koichi Maegawa
- C30 - CRYSTAL GROWTH
Information Patent Application
CONTINUOUS CASTING METHOD OF SILICON INGOT
- Publication number 20130247618
- Publication date Sep 26, 2013
- Mitsuo YOSHIHARA
- C30 - CRYSTAL GROWTH

Koichi MAEGAWA

Person

Patents Grantslast 30 patents

N-type silicon single crystal production method, n-type silicon sin...

Method for producing silicon single crystal

Method for producing silicon single crystal

N-type silicon single crystal production method, n-type silicon sin...

Deposit removing device and deposit removing method

Cleaning method, method for producing silicon single crystal, and c...

N-type silicon single crystal production method, n-type silicon sin...

Method for producing silicon single crystal

Method for manufacturing silicon single crystal, flow straightening...

Electromagnetic casting method and apparatus for polycrystalline si...

Continuous casting method of silicon ingot

Patents Applicationslast 30 patents

N-TYPE SILICON SINGLE CRYSTAL PRODUCTION METHOD, N-TYPE SILICON SIN...

METHOD FOR PRODUCING SILICON SINGLE CRYSTAL

N-TYPE SILICON SINGLE CRYSTAL PRODUCTION METHOD, N-TYPE SILICON SIN...

DEPOSIT REMOVING DEVICE AND DEPOSIT REMOVING METHOD

METHOD FOR PRODUCING SILICON SINGLE CRYSTAL

CLEANING METHOD, METHOD FOR PRODUCING SILICON SINGLE CRYSTAL, AND C...

N-TYPE SILICON SINGLE CRYSTAL PRODUCTION METHOD, N-TYPE SILICON SIN...

N-TYPE SILICON SINGLE CRYSTAL PRODUCTION METHOD, N-TYPE SILICON SIN...

SINGLE CRYSTAL SILICON PRODUCTION METHOD, EPITAXIAL SILICON WAFER P...

METHOD FOR PRODUCING SILICON SINGLE CRYSTAL

METHOD FOR MANUFACTURING SILICON SINGLE CRYSTAL, FLOW STRAIGHTENING...

ELECTROMAGNETIC CASTING METHOD AND APPARATUS FOR POLYCRYSTALLINE SI...

CONTINUOUS CASTING METHOD OF SILICON INGOT