Kazumasa Ohkubo
President at JAPAN ELECTRONIC MATERIALS CORPORATION
Net worth: 9 M $ as of 2024-03-30
Profile
Kazumasa Ohkubo is currently the President & Representative Director at JAPAN ELECTRONIC MATERIALS CORP.
He previously held the position of Chairman & President at JEM America Corp.
from 2004 to 2015.
He also served as Chairman at JEM (Hong Kong) Co., Ltd., Jem Europe SARL, Jem Taiwan Probe Corp., Jem Shanghai Co. Ltd., and Representative Director & Vice President at Jem Korea Co. Ltd.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2023-09-29 | 510,000 ( 4.03% ) | 9 M $ | 2024-03-30 |
Kazumasa Ohkubo active positions
| Companies | Position | Start |
|---|---|---|
| JAPAN ELECTRONIC MATERIALS CORPORATION | President | 2017-05-31 |
Former positions of Kazumasa Ohkubo
| Companies | Position | End |
|---|---|---|
| JEM (Hong Kong) Co., Ltd. | Chairman | - |
Jem Shanghai Co. Ltd.
 Jem Shanghai Co. Ltd. Electronic Production EquipmentElectronic Technology Part of JAPAN ELECTRONIC MATERIALS CORP., Jem Shanghai Co. Ltd. is a private company that manufactures and sells electron tubes and semiconductor testing equipment. The company is based in Shanghai, China. | Chairman | - |
| Jem Taiwan Probe Corp. | Chairman | - |
| JEM America Corp. | Chairman | - |
| Jem Europe SARL | Chairman | - |
Experiences
Positions held
Connections
1st degree connections
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 7 |
|---|---|
| JAPAN ELECTRONIC MATERIALS CORP. | |
| JEM America Corp. | |
| JEM (Hong Kong) Co., Ltd. | |
Jem Korea Co. Ltd.
 Jem Korea Co. Ltd. SemiconductorsElectronic Technology Part of JAPAN ELECTRONIC MATERIALS CORP., Jem Korea Co. Ltd. is a South Korean company that manufactures and markets semiconductor products. The private company is based in Seoul, South Korea. | Electronic Technology |
| Jem Europe SARL | |
| Jem Taiwan Probe Corp. | |
Jem Shanghai Co. Ltd.
Jem Shanghai Co. Ltd. Electronic Production EquipmentElectronic Technology Part of JAPAN ELECTRONIC MATERIALS CORP., Jem Shanghai Co. Ltd. is a private company that manufactures and sells electron tubes and semiconductor testing equipment. The company is based in Shanghai, China. | Electronic Technology |
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