Shozaburo Shimada
CEO at Tuqul Inc.
Kawasaki, Japan
Summary
👤
Senior🎓
Top SchoolShozaburo Shimada is an experienced hardware and power systems engineer turned CEO with nine years in industry and over five years focused on DC-DC converters, chargers, and battery-powered systems. He has deep expertise in high-efficiency, compact power circuit design, battery management for Li-ion cells, and power budgeting for Intel-based mobile platforms, with practical motherboard and power delivery experience from Sony VAIO projects. As founder and leader at VIVIWARE and now CEO of Tuqul, he blends hands-on prototyping— including USB Power Delivery and RTC battery-less systems—with product management and regulatory know-how (EU ErP, Energy Star). His background spans R&D at Sony to product roles at VIVITA, reflecting a rare mix of low-level analog skill and system-level product thinking. Active in the hardware community (Qiita, Twitter), he often collaborates with IC vendors to turn novel power-management concepts into production-ready solutions. Based in Kawasaki, Japan, he brings an engineer’s rigor to entrepreneurial leadership, prioritizing efficiency and practical innovation.
9 years of coding experience
11 years of employment as a software developer
Master of Engineering (M.Eng.), Electrical and Electronic Engineering, Master of Engineering (M.Eng.), Electrical and Electronic Engineering at Kyushu University
Japanese, Chinese
Stackoverflow
1reputation
0reached
0answers
0questions
Programming languages (3)
Github contributions (5)
vivitainc/KiCADsymbol
Oct 2017 - Jan 2025
Contributions:2 PRs, 95 pushes, 3 branches in 7 years 4 months
vivitainc/KiCADfootprint.pretty
Oct 2017 - Aug 2020
Contributions:99 commits, 93 pushes, 1 branch in 2 years 10 months
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