Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Daisuke Yashima — 18 Patents

Kioxia: 16 patents #46 of 1,813Top 3%
Kabushiki Kaisha Toshiba: 2 patents #10,039 of 21,451Top 50%
Tachikawa, JP: #52 of 482 inventorsTop 15%
Overall (All Time): #245,716 of 4,157,543Top 6%
18 Patents All Time
Daisuke Yashima has been granted 18 US patents while listed as an inventor at Kioxia. The first was granted in 2011 and the most recent in February 2025. Daisuke Yashima ranks #245,716 of 4,157,543 US inventors in our database (top 5.9%). Patent records list Daisuke Yashima in Tachikawa, JP.

Patents per Year

Patents granted per year, 2011 to 2025Bar chart with a peak of 6 patents in 2023.peak 62011: 1 patents20112019: 1 patents20192022: 4 patents20222023: 6 patents20232024: 5 patents20242025: 1 patents2025

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
12224778 Dictionary compressor, data compression device, and memory system Keiri Nakanishi, Sho Kodama 2025-02-11
12108064 Memory system Masato Sumiyoshi, Keiri Nakanishi, Takashi Miura, Kohei Oikawa, Sho Kodama +2 more 2024-10-01
12001339 Dictionary compression device and memory system Sho Kodama, Keiri Nakanishi, Masato Sumiyoshi, Youhei Fukazawa, Zheye Wang +2 more 2024-06-04
11909423 Compression circuit, storage system, and compression method Sho Kodama, Keiri Nakanishi 2024-02-20
11899934 Compression device, compression and decompression device, and memory system Youhei Fukazawa, Sho Kodama, Keiri Nakanishi, Kohei Oikawa, Takashi Miura +2 more 2024-02-13
11868615 Compression device and control method Youhei Fukazawa, Kohei Oikawa, Sho Kodama, Keiri Nakanishi, Takashi Miura +2 more 2024-01-09
11824566 Data decompression device, data compression device, and memory system Zheye Wang, Keiri Nakanishi, Kohei Oikawa, Masato Sumiyoshi, Sho Kodama +2 more 2023-11-21
11818376 Memory system Masato Sumiyoshi, Keiri Nakanishi, Takashi Miura, Kohei Oikawa, Sho Kodama +2 more 2023-11-14
11777518 Data compression device, memory system and method Youhei Fukazawa, Sho Kodama, Keiri Nakanishi, Masato Sumiyoshi, Kohei Oikawa +2 more 2023-10-03
11714552 Memory system Sho Kodama, Keiri Nakanishi, Masato Sumiyoshi, Zheye Wang, Kohei Oikawa +2 more 2023-08-01
11651833 Error detection in memory system Kohei Oikawa, Keiri Nakanishi, Sho Kodama, Masato Sumiyoshi, Youhei Fukazawa +2 more 2023-05-16
11588498 Character string search device and memory system Kohei Oikawa, Sho Kodama, Keiri Nakanishi, Masato Sumiyoshi, Youhei Fukazawa +2 more 2023-02-21
11461008 Memory system for improving compression performance of a dictionary coder circuit Sho Kodama, Keiri Nakanishi, Kohei Oikawa, Masato Sumiyoshi, Youhei Fukazawa 2022-10-04
11431995 Memory system Masato Sumiyoshi, Keiri Nakanishi, Takashi Miura, Kohei Oikawa, Sho Kodama +2 more 2022-08-30
11397546 Memory system Masato Sumiyoshi, Keiri Nakanishi, Takashi Miura, Kohei Oikawa, Sho Kodama +2 more 2022-07-26
11309909 Compression device, decompression device, and method Youhei Fukazawa, Keiri Nakanishi, Sho Kodama, Masato Sumiyoshi, Kohei Oikawa +2 more 2022-04-19
10205540 Signal detection device, wireless communication device, and wireless communication terminal Kensuke Nakanishi, Hiroki Mori, Takeshi Kumagaya, Takahisa Kaihotsu 2019-02-12
7890775 Information processing apparatus, content control method, and storage medium 2011-02-15