Natsuki KAI has been granted 5 US patents while listed as an inventor at Nec . The first was granted in 2020 and the most recent in December 2025. Natsuki KAI ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Natsuki KAI in Tokyo, JP.
Patents per Year Patents granted per year, 2020 to 2025 Bar chart with a peak of 3 patents in 2025. peak 3 2020: 1 patents 2020 2024: 1 patents 2024 2025: 3 patents 2025
Issued Patents All Time
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Showing 1–5 of 5 patents
Patent # Title Co-Inventors Date
12493974 Information processing apparatus, three-dimensional position estimation method, and a non-transitory computer-readable medium — 2025-12-09
12469167 Positioning device, estimation method, and non-transitory computer-readable medium Takahiro Shiroshima , Hideo Saito , Masahiro Yamaguchi 2025-11-11
12249089 Self-position estimation apparatus, self-position estimation method, and program — 2025-03-11
12010435 Image pick-up apparatus, image pick-up method that picks up images for a visual simultaneous localization and mapping — 2024-06-11
10652123 Throughput measuring apparatus, method, and recording medium — 2020-05-12
