KM

Koichi Maegawa

SU Sumco: 11 patents #25 of 464Top 6%
Overall (All Time): #434,032 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12252803 N-type silicon single crystal production method, n-type silicon single crystal ingot, silicon wafer, and epitaxial silicon wafer Yasuhito Narushima, Yasufumi KAWAKAMI, Fukuo Ogawa, Ayumi Kihara 2025-03-18
12116691 Method for producing silicon single crystal Yasufumi KAWAKAMI 2024-10-15
11814745 Method for producing silicon single crystal Yasufumi KAWAKAMI 2023-11-14
11702760 N-type silicon single crystal production method, n-type silicon single crystal ingot, silicon wafer, and epitaxial silicon wafer Yasuhito Narushima, Yasufumi KAWAKAMI, Fukuo Ogawa, Ayumi Kihara 2023-07-18
11639560 Deposit removing device and deposit removing method Fukuo Ogawa, Takuya Yotsui 2023-05-02
11426775 Cleaning method, method for producing silicon single crystal, and cleaning device Takuya Yotsui, Satoru Hamakawa 2022-08-30
11377755 N-type silicon single crystal production method, n-type silicon single crystal ingot, silicon wafer, and epitaxial silicon wafer Yasuhito Narushima, Yasufumi KAWAKAMI, Fukuo Ogawa, Yuuji Tsutsumi 2022-07-05
11242617 Method for producing silicon single crystal Yasuhito Narushima, Yasufumi KAWAKAMI, Fukuo Ogawa 2022-02-08
10916425 Method for manufacturing silicon single crystal, flow straightening member, and single crystal pulling device Fukuo Ogawa, Yasuhito Narushima, Yasufumi KAWAKAMI 2021-02-09
9553221 Electromagnetic casting method and apparatus for polycrystalline silicon Tomohiro Onizuka, Mitsuo Yoshihara 2017-01-24
9080814 Continuous casting method of silicon ingot Mitsuo Yoshihara, Shinya Fukushima 2015-07-14