Toshio Yamaguchi

Director/Board Member at EXTREME CO.,LTD.

Net worth: 85 801 $ as of 2026-08-30

63 year

Health Technology

Technology Services

Profile

Toshio Yamaguchi is an Independent Outside Director at extreme Co., Ltd. since 2015.
Formerly, Mr. Yamaguchi was an Outside Director at CellSeed, Inc.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
Digital Media Professionals Inc. Digital Media Professionals Inc. SemiconductorsElectronic Technology Engages in licensing hardware intellectual property and software IP that uses 2D & 3D graphics technologies developed 0.16%	2026-06-21	5,200 ( 0.16% )	85 801 $	2026-08-30

Toshio Yamaguchi active positions

Companies	Position	Start
EXTREME CO.,LTD.	Director/Board Member	2015-05-31

All active positions of Toshio Yamaguchi

Former positions of Toshio Yamaguchi

Companies	Position	End
CELLSEED INC.	Director/Board Member	-

See the detail of Toshio Yamaguchi's experience

Experiences
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Private companies

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Linked companies

Private companies	2
CellSeed, Inc. CellSeed, Inc. Pharmaceuticals: OtherHealth Technology Engages in the cell sheet regenerative medicine and intelligent cell culture ware products businesses	Health Technology
extreme Co., Ltd. extreme Co., Ltd. Information Technology ServicesTechnology Services Provides digital human resource, outsourced development and content property services	Technology Services