Tatsuya Koyama

Mayer Brown LLP

General

Experience7 yrs

Elite Ratings

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Practice Areas

Semicond., Optic (2 cases)

Communications (6 cases)

Software, Security (7 cases)

Comp. Arch. and Software (2 cases)

Law Firms

Mayer Brown LLP (Current)

tatsuya.koyama@mayerbrown.com

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DCT

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PTAB

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CAFC

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Cases

Case #	Court	Caption	Filed	Represent
2:26-CV-00266	E.D. TX	Maxell Ltd v. LG Electronics Inc	04/01/26	Patent Owner :Maxell Ltd	.
5:25-CV-00097	E.D. TX	Maxell Ltd v. Samsung Electronics Co Ltd	07/09/25	Patent Owner :Maxell Ltd	.
5:25-CV-00067	E.D. TX	Maxell Ltd v. TCL Electronics Holdings Ltd	05/30/25	Patent Owner :Maxell Ltd	.
5:25-CV-00034	E.D. TX	Maxell Ltd v. Samsung Electronics Co Ltd	03/21/25	Patent Owner :Maxell Ltd	.
2:24-CV-00722	E.D. TX	NEC Corp v. Yi Tech Inc	09/03/24	Patent Owner :Nec Corp	.
2:24-CV-00720	E.D. TX	NEC Corp v. Anker Innovations Technology Co Ltd	09/03/24	Patent Owner :Nec Corp	.
5:23-CV-00108	E.D. TX	Maxell, Ltd. v. TCL Electronics Holdings LTD., (F/K/A TCL Multimedia Technology HOLDINGS, LTD.)	10/12/23	Patent Owner(W) :Maxell Ltd	.
5:23-CV-00092	E.D. TX	Maxell Ltd v. Samsung Electronics Co Ltd	09/07/23	Patent Owner(L) :Maxell Ltd	.
5:19-CV-00156	E.D. TX	Maxell Ltd v. Hisense Co Ltd	11/22/19	Patent Owner :Maxell Ltd	.

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