![Ryoko Toyama](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Ryoko Toyama
Director/Board Member at
TOPPAN HOLDINGS INC.
Profile
Ryoko Toyama is currently an Independent Outside Director at TOPPAN Holdings, Inc. since 2016, an Independent Outside Director at Oki Electric Industry Co., Ltd. starting in 2025, and a Professor at Chuo Graduate School of Strategic Management since 2008.
Former roles include Independent Outside Director at M3, Inc. and Assistant Professor at Japan Advanced Institute of Science & Technology.
Ryoko Toyama active positions
| Companies | Position | Start |
|---|---|---|
| TOPPAN HOLDINGS INC. | Director/Board Member | 01/06/2016 |
| OKI ELECTRIC INDUSTRY CO., LTD. | Director/Board Member | 01/06/2025 |
Chuo Graduate School of Strategic Management
 Chuo Graduate School of Strategic Management Other Consumer ServicesConsumer Services Functions as a College/University | Corporate Officer/Principal | 01/04/2008 |
Former positions of Ryoko Toyama
| Companies | Position | End |
|---|---|---|
| M3, INC. | Director/Board Member | - |
Japan Advanced Institute of Science & Technology
 Japan Advanced Institute of Science & Technology Other Consumer ServicesConsumer Services Functions as a College/University | Corporate Officer/Principal | - |
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
48
1st degree connections
5
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 5 |
|---|---|
TOPPAN Holdings, Inc.
 TOPPAN Holdings, Inc. Commercial Printing/FormsCommercial Services Engages in business forms, commercial, photo masks printing and ICT services | Commercial Services |
Oki Electric Industry Co., Ltd.
 Oki Electric Industry Co., Ltd. Electronic Equipment/InstrumentsElectronic Technology Manufactures and sells ATM's, cash handling machines, branch terminals, ticket reservation terminals, disaster prevention systems and defense systems | Electronic Technology |
M3, Inc.
 M3, Inc. Internet Software/ServicesTechnology Services Operates an online medical information platform | Technology Services |
Japan Advanced Institute of Science & Technology
Japan Advanced Institute of Science & Technology Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Chuo Graduate School of Strategic Management
Chuo Graduate School of Strategic Management Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
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