Toshiko Oka
Director/Board Member at PROTERAL
Profile
Toshiko Oka is currently an Independent Outside Director at Sony Group Corp., Happinet Corp., ENEOS Holdings, Inc., and Proterial Ltd.
She is also a Representative Director at Oka & Co. Kk and an Outside Director at Hitachi Construction Machinery Co., Ltd.
and Earth Corp.
In the past, she served as an Independent Outside Director at Mitsubishi Corp., a Director at Netyear Group Corp., an Outside Director at Globis Corp., and the President & Representative Director at maval partners, Inc. She was also the President & Representative Director at PricewaterhouseCoopers Deals Advisory Inc. from 2005 to 2016.
Toshiko Oka active positions
| Companies | Position | Start |
|---|---|---|
| PROTERAL | Director/Board Member | 31/05/2016 |
| SONY GROUP CORPORATION | Director/Board Member | 18/06/2018 |
| HAPPINET CORPORATION | Director/Board Member | 20/06/2019 |
| ENEOS HOLDINGS, INC. | Director/Board Member | 31/05/2020 |
| EARTH CORPORATION | Director/Board Member | 29/02/2024 |
| HITACHI CONSTRUCTION MACHINERY CO., LTD. | Director/Board Member | - |
| Oka & Co. Kk | Director/Board Member | 31/05/2016 |
Former positions of Toshiko Oka
| Companies | Position | End |
|---|---|---|
PricewaterhouseCoopers Deals Advisory Inc.
 PricewaterhouseCoopers Deals Advisory Inc. Investment Banks/BrokersFinance Part of PricewaterhouseCoopers International Ltd., PricewaterhouseCoopers Deals Advisory Inc. provides M&A advisory and consulting services. The private company is based in Tokyo, Japan. | President | 29/02/2016 |
| MITSUBISHI CORPORATION | Director/Board Member | - |
| ░░░░░░ ░░░░░ | ░░░░░░░░░░░░░░ ░░░░░░ | - |
| ░░░░░ ░░░░░░░░░ ░░░░ | ░░░░░░░░░ | - |
| ░░░░░░░ ░░░░░ ░░░░░░░░░░░ | ░░░░░░░░░░░░░░ ░░░░░░ | - |
Experiences
Positions held
Connections
1st degree connections
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Listed companies | 7 |
|---|---|
| SONY GROUP CORPORATION | Electronic Technology |
| MITSUBISHI CORPORATION | Distribution Services |
| HITACHI CONSTRUCTION MACHINERY CO., LTD. | Producer Manufacturing |
| HAPPINET CORPORATION | Distribution Services |
| EARTH CORPORATION | Health Technology |
| NETYEAR GROUP CORPORATION | Technology Services |
| ENEOS HOLDINGS, INC. | Energy Minerals |
| Private companies | 5 |
|---|---|
Proterial Ltd.
 Proterial Ltd. SteelNon-Energy Minerals Proterial Ltd. engages in the manufacture and sale of products for automobile, electronics, and infrastructure industry sectors. It operates through the following divisions: Specialty Steel, Magnetic Materials, Functional Components, and Cable Materials. The Specialty Steel division includes high-grade special steel, rolls, steel and ceramic structural parts, injection molding machine parts, and soft magnetic materials. The Magnetic Materials division comprises of magnets and ceramic products. The Functional Components division consists of high-grade casting components for automobiles, piping and infrastructure components, and construction components. The Cable Materials division offers electric wires and functional items such as industrial wire, equipment wire, industrial rubber, cable processed products, automotive electrical components, and brake hose. The company was founded on April 10, 1956 and is headquartered in Tokyo, Japan. | Non-Energy Minerals |
Globis Corp.
 Globis Corp. Investment ManagersFinance Globis Corp. (Globis) is an independent venture capital firm headquartered in Tokyo, Japan. The firm was founded in 1992 by Hori Yoshito. | Finance |
| maval partners, Inc. | Finance |
PricewaterhouseCoopers Deals Advisory Inc.
PricewaterhouseCoopers Deals Advisory Inc. Investment Banks/BrokersFinance Part of PricewaterhouseCoopers International Ltd., PricewaterhouseCoopers Deals Advisory Inc. provides M&A advisory and consulting services. The private company is based in Tokyo, Japan. | Finance |
| Oka & Co. Kk |
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