Ryohei: Email & Phone Number

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Product Manager at Preferred Networks, Inc.|Japan

Position:

Product Manager at Preferred Networks, Inc.

Location:

Japan

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Last updated: 2026-06-17

Updated: 2026-06-17

Found email addresses for Ryohei:

Business emails:

**@preferred.jp

Found phone for Ryohei:

+81-***-***-0075

A different Ryohei?

Work Experience 10 years

Product Manager at Preferred Networks, Inc.

Jul 2025 - Current

New Business Development at Toshiba

Apr 2023 - Jun 2025

AI Researcher at Toshiba

Apr 2016 - Jun 2025

Ryohei started working in 2016, then the employee has changed 1 company and 2 jobs. On average, Ryohei works for one company for 4 years 1 month.

Their professional focus is Deep Neural Networks (DNN), Python (プログラミング言語), and 光学式文字認識 (OCR) across 3 core areas.

Education

Master of Information Science & Technology at 東京大学

Bachelor of Engineering - BE at 東京大学

Frequently Asked Questions

What is Ryohei's email address?

SignalHire found a verified business email address for Ryohei: **@preferred.jp.

What is Ryohei's phone number?

SignalHire found a verified phone number for Ryohei: +81-***-***-0075.

How do I contact Ryohei at Preferred Networks, Inc.?

You can reach Ryohei through SignalHire by unlocking their verified email and direct phone number (free signup, no credit card needed). SignalHire is the fastest route if you need their contact details immediately.

What is Ryohei's professional background?

Ryohei has 10 years of professional experience. They have held roles including New Business Development, and AI Researcher at companies such as Toshiba, and Toshiba. Their education includes Master of Information Science & Technology from 東京大学, and Bachelor of Engineering - BE from 東京大学.

Is Ryohei's contact information up to date?

Yes. Ryohei's SignalHire profile was last updated on 17 June 2026, reflecting their current position as Product Manager at Preferred Networks, Inc. in Chiyoda-ku, Tokyo, Japan.

Ryohei Namesakes

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Ryohei

KKday

Manager, Customer Success

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Ryohei

Cape.io

Sales Development Representative

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Ryohei

Japan International Cooperation Agency (JICA)

Urban and Regional Development Group, Infrastructure Management Department

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