Cypress Sues CA Company for Patent Infringement

San Jose, California-based Cypress Semiconductor-which has a manufacturing facility in Bloomington-claims that GSI Technology's products infringe on five patents that Cypress holds.

Cypress Semiconductor is suing GSI Technology, Inc., over claims that GSI's products infringe on five of Cypress' patents.

San Jose, California-based Cypress-which has a manufacturing facility in Bloomington that is expanding-filed the suit Wednesday in U.S. District Court in Minnesota.

According to the complaint, GSI's products infringe on five patents that were issued to Cypress between 1999 and 2007. Those patents relate to Cypress' static random-access memory (SRAM) products. SRAM products use a type of semiconductor memory that does not need to be periodically refreshed.

Specifically, Cypress said in the court documents that GSI's SigmaQuad- and SigmaDDR-branded products infringe on the patents.

In the suit, Cypress claims that it has grown its SRAM business to become a “pioneer” in the field by making investments internally, including at its Bloomington facility, which has been in operation since 1991 and employs about 500 people.

Cypress claims that it has lost profits due to the alleged infringement because GSI's products “take sales away from Cypress.” The company is asking that the court demand that GSI stop making and selling the products in question. Cypress is also seeking an unspecified amount in damages and attorney costs and fees.

GSI issued a statement on Friday, saying that it was aware of the suit but had not yet been formally served.

“The company has begun an investigation of Cypress' claims and intends to defend the lawsuit vigorously,” GSI said in the statement.

Earlier this year, Cypress announced plans to increase capacity at its Bloomington manufacturing facility this year, saying that it will triple the facility's manufacturing capacity for certain products.

Cypress Semiconductor, founded in 1982, employs more than 3,500 and boasted sales of $878 million in 2010.