SiOnyx, LLC et al.v. Hamamatsu Photonics K.K. et al. (15-cv-13488).

Judge Saylor granted in part SiOnyx’s renewed motion to compel in this patent infringement, correction of inventorship, and breach of contract case. SiOnyx had entered into an agreement with Hamamatsu to explore a possible business relationship surrounding laser-textured infrared-sensing silicon photonic devices. The business relationship never came to fruition, and Hamamatsu subsequently applied for patents directed to similar technology. A discovery dispute arose over whether SiOnyx could obtain information on products that were textured by some means other than a laser, with Hamamatsu taking the position that the infringement contentions did not accuse such products and the former SiOnyx founder now working for Hamamatsu did not contribute to the invention of non-laser-textured devices. SiOnyx’s initial motion to compel was denied without prejudice, because at the time there was insufficient evidence to support a charge of infringement; since then, SiOnyx was able to develop sufficient information that the products infringe, and that an offer for sale of the accused products has been made that, if accepted, would generate significant sales. Judge Saylor found that SiOnyx’s evidence related to the breach of contract and use of confidential information claims (that the Hamamatsu engineers who were exposed to this information developed the non-laser-textured products) was insufficient to overcome the significant differences in the resulting textures that negate an inference that they were developed using SiOnyx’s confidential information. Because the motion was granted only with respect to the patent claims, Hamamatsu was compelled to produce information relating only to U.S. sales or imports.

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