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About Pulsiv8

Healthcare, shaped by the frontline.

Our mission

Innovation that inspirespeople in healthcare.

Our vision

More efficient healthcare.Greater quality and sustainability,in Japan and beyond.

Our values

Listen to each person on the frontline.Create solutions that matter.

Our team

Kazuhisa Tsuji

CEO

Kazuhisa Tsuji

Founded Pulsiv8 after leading national telecoms and AI initiatives. Connects business strategy with product development.

Background & expertise

Graduated from the Graduate School of Keio University

Led wireless infrastructure planning, base station construction project management, and national 5G/AI initiatives at a major telecommunications company. Subsequently became an independent consultant and established Pulsiv8 to strongly support the growth of domestic industries.

Responsibilities
Partnerships / Software Development
Expertise
Project Management / TypeScript / Python
Ryousuke Nishioka

CTO

Ryousuke Nishioka

Combines machine learning engineering with data strategy to turn technology into business value.

Background & expertise

Graduated from the Graduate School of Kyoto University

Gained experience in machine learning model development and system integration at an IT/AI startup, then handled comprehensive data utilization for management at a global consulting firm. Subsequently established Pulsiv8.

Responsibilities
Big Data / AI
Expertise
Data Utilization Consulting / Machine Learning / Python / SQL
Chizuru Kato

Sales Manager

Chizuru Kato

Sales manager who combines clinical experience with business execution and negotiation.

Background & expertise

Graduated from the College of Nursing at the University of Tsukuba

Worked as a nurse at a university hospital and as an occupational health nurse at a major systems integrator, then joined the launch of the management company for a multi-site clinic group. Reporting directly to leadership, led HR system design, recruiting strategy, customer success, CRM, and new business development, bringing clinical experience together with data-driven execution.

Responsibilities
Business Planning / Organization Management / Customer Success / Healthcare
Expertise
Project Management / CRM / Nurse & Public Health Nurse
Marwen Sarraj

Software Engineer

Marwen Sarraj

Tech lead with 8+ years in web and mobile engineering, product delivery and team building.

Background & expertise

Master’s in computer science

Tech lead with 8+ years of experience driving innovation in startups, leading cross-functional teams, and delivering scalable web and mobile solutions. Expert in full-stack development, agile practices, and growth-focused product strategy, with a proven record in team building, client relations, and public speaking.

Responsibilities
Business Development / Software Solution Development
Expertise
Mobile & Web development / Software Architecture
Maha Mahyub

Software Engineer

Maha Mahyub

Computer science PhD working across signal processing, machine learning, and web and mobile development.

Background & expertise

Ph.D. in Computer Science with a focus on Signal Processing

I began my career as a Frontend Developer, building mobile and web applications using Angular, Ionic, and React. I later transitioned into Machine Learning, where I have worked on a variety of AI-focused projects, including environmental sound classification. I combined deep learning with traditional machine learning methods to classify sounds under low data conditions, aiming to build systems that are both robust and computationally efficient for practical deployment. I have also worked on anomaly detection for industrial robotic arms, simulation calibration, and multi-camera tracking for sports analysis.

Responsibilities
AI / Software Development / Project Management
Expertise
Machine Learning / Mobile & Web development
Mizuki Kimura

Business Development Advisor

Mizuki Kimura

Practicing physician bringing clinical experience and a background in copywriting to business development.

Background & expertise

Worked at an advertising agency as a copywriter during university days

After graduation, worked at a university hospital as a trainee and then retired after joining the ENT department

Currently, works as a general practitioner in Tokyo, conducting outpatient and home visits

Responsibilities
Business Development Advisor
Expertise
Doctor / Copywriting
Katsuki Hirashige

Corporate Advisor

Katsuki Hirashige

Supports company growth with experience in AI, IoT, venture investment and management consulting.

Background & expertise

At a major telecommunications company, engaged in AI/IoT research and development, as well as launching new businesses and joint ventures. Also gained experience at a strategy consulting firm, serving as a venture capitalist and strategy consultant providing investment and management support. Joined Pulsiv8 in June 2024.

Responsibilities
Corporate Advisory
Expertise
Finance / Business Planning
Jo-Ann Marie Osayda Marcon

International HR Officer

Jo-Ann Marie Osayda Marcon

Brings experience in international public policy, education and community outreach to people and communication.

Background & expertise

University of Tsukuba / International Public Policy

Worked as a university lecturer/ field work/ facilitated community outreach programs/ social marketing unit intern for a government agency (social welfare)

Responsibilities
HR / Communication
Expertise
Market Research / Design / Coaching

Company

Company
Pulsiv8 Inc.
Founded
April 2024
CEO
Kazuhisa Tsuji
Members
20 members (as of September 30, 2026)
Location
7F Kayabacho 1-Chome Heiwa Building,1-8-1 Nihonbashi Kayabacho, Chuo-ku, Tokyo, Japan
Capital
JPY 27,500,000 (including capital reserve)
Business
Medical AI SolutionAI Technology Consultation and Support
Security
Japanese Government GuidelinesISO/IEC 27001:2022Cert. Number GIJP-1978-IC

Let's buildbetter care.

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