COMPANY PROFILE

The story, values, and vision behind your most trusted technical partner.

Our Mission: To Be Your Most Reliable Partner

We believe technology should be an accelerator, not a barrier. Our mission is to bridge the gap between ambitious business ideas and the elegant, robust technology required to bring them to life. We empower our partners by building powerful, intuitive digital solutions that drive growth and create lasting value. We're not just building platforms; we're building the future of your business.

- THINK DESIGN TEAM

Our Values

▶ Client Success as Our Own

We operate as an extension of your team. Our primary goal is to deeply understand your business challenges and goals, allowing us to build solutions that deliver tangible results and drive long-term value.

▶ Uncompromising Quality

We believe in building things the right way. Our commitment to clean, robust, and scalable code ensures that the solutions we deliver are not just visually stunning, but are also reliable, secure, and built to last.

▶ Proactive Innovation

The digital landscape changes constantly. We stay ahead of the curve, proactively exploring new technologies and methodologies to ensure our clients are not just keeping up, but setting the pace in their industries.

A Message from Our Founder

Thank you for visiting.

With over two decades of experience since the dawn of the web, I have built a diverse career across UI/UX design, front-end development, web direction, digital marketing, and SaaS product development. Since founding THINK DESIGN, I have operated with both flexibility and accountability—providing end-to-end services from planning and design through development, delivery, and ongoing support.

Our company is a technology company focused on our core SaaS (Software as a Service) business and AI development, leveraging the cutting-edge technologies and expertise developed through our own products to provide solutions to external clients and achieve sustainable growth. Our proprietary SaaS products and AI solutions serve as both our growth engine and the foundation for delivering high-value consulting and development services to our partners. In particular, we leverage practical AI utilization know-how gained from developing private AI assistants like BY MYSIDE that encompass everything from email management to calendar management for corporate digital transformation and operational efficiency.

In recent years, I have actively adopted modern JavaScript frameworks such as React, Vue.js, and Angular, along with design tools like Adobe Creative Cloud and Figma, and AI-based development assistants such as ChatGPT, Gemini, Claude, GitHub Copilot, and Amazon Q. By embracing AI-driven co-creation, prompt engineering, and automated workflows, I have optimized production speed and quality—freeing more time for creative problem-solving and innovation.

My past projects span corporate and e-commerce websites, campaign sites for major brands, digital signage, interactive content, smartphone accessory and uniform design, and social media operations. Across every project, I focus on a deep understanding of business objectives, intuitive design, user experience excellence, and performance optimization including SEO and accessibility.

For me, web development is always rooted in partnership. My mission is to empower clients to focus on their core innovation by providing robust, intuitive tools and solutions. Through both our proprietary SaaS development and extensive practical experience, THINK DESIGN delivers integrated value across design, development, marketing, and operations.

With a strong foundation in hands-on expertise and a constant curiosity for emerging technologies, I am committed to contributing wholeheartedly to the success of every project. Thank you for choosing to make me part of your journey.

- Kohei Hishiyama, Founder

Owner's portfolio here - Check out English Portfolio

Representative Profile

About this person:

A professional in web development since the era of feature phones. A multi-player who serves as a front-end engineer, director, and designer. Currently leverages extensive practical experience and solid technical skills, utilizing AI and the latest technology for fast and flexible web development. Known for a sincere approach to client challenges and personal responsibility for projects—this is the foundation of client trust.

Main Background:

Started as a freelance designer in the early 2000s, self-taught in HTML. Gained front-end engineering experience at IT companies, directed at several startups. Founded THINK DESIGN in 2006 and continued production business in parallel with employment. Since becoming independent, has handled numerous corporate projects and e-commerce sites, continuing the production business to this day.

Hobbies / Special Skills:

Enjoys watching movies, playing video games, listening to music, and driving. Prefers documentaries over sci-fi or fantasy films. Specializes in prototyping interactive visual technologies for digital signage or website homepages. Skilled in HTML/CSS coding and JavaScript programming. Recently, also actively working on AI-based art projects.

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UI/UX Designer, Front-end Developer, Web Director, Art Director, Project Manager, Digital Content Creator, Video Producer, DTP Designer, Digital Marketing and Planning Specialist.

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Official Information

Company Name THINK DESIGN
Owner Kohei Hishiyama
Address Wizard Bldg. 402, 1-4-3 Sengen-cho, Nishi-ku, Yokohama-shi, Kanagawa 220-0072, JAPAN
Email info@thinkdsgn.com
Support support@thinkdsgn.com
Phone +81 80 2780 7686
Business Web service development & operation, digital content production

Documents & Resources

Resume / CV

Detailed professional background and technical expertise of our founder.

Check out our English Resume
Check out our Japanese Resume

Portfolio & Case Studies

Comprehensive showcase of our projects, achievements, and business capabilities.

Check out our English Portfolio
Check out our Japanese Portfolio