PENTAX Joins Growing Roster of Global Manufacturers Licensed to Use the Moore Microprocessor Patent™ Portfolio

CUPERTINO, Calif. – June 28, 2006 – Alliacense today announced that PENTAX Corporation has agreed to purchase, pending approval by its Board, a license to use the Moore Microprocessor Patent™ (MMP) Portfolio. Six other major system manufacturers have purchased MMP licenses from The TPL Group this year. Prior licensees include HP, Casio, Fujitsu, Sony and Nikon as well as Seiko Epson, whose Board approved this week its earlier-announced agreement to purchase an MMP license.

“Our roster of MMP Portfolio licensees is beginning to look like the ‘Who’s Who’ in the world of Intellectual Property,” said Mac Leckrone, Alliacense president.  “PENTAX along with prior licensees are each in their own right leading developers of intellectual property; and it is therefore gratifying to have them quickly recognize the import of the fundamental technologies protected by the MMP Portfolio.”

With PENTAX becoming the seventh system manufacturer to purchase an MMP license in as many months, Leckrone added, “As the First Round MMP Portfolio licensing berths in many industry sectors are being captured, royalty rates are increasing according to plan. At this stage of our licensing program, we are continuing to focus on industry leaders whose management is empowered to make quick strategic business decisions.”

The MMP Portfolio patents, filed by The TPL Group in the 1980s, cover techniques that enable higher performance and lower cost designs, and are fundamental to consumer and commercial digital systems ranging from DVD players, cell phones and portable music players, to communications infrastructure, medical equipment, and automobiles.

About the MMP Portfolio

Named after legendary inventor Charles “Chuck” Moore, the Moore Microprocessor Patent Portfolio includes seven US patents as well as their European and Japanese counterparts fundamental to the design of modern microprocessors, microcontrollers and system-on-chip devices. Developed in a joint venture between the TPL Group and Moore, the MMP Portfolio today is jointly owned by privately held TPL Group and publicly held Patriot Scientific Corporation (PTSC.OB).

About PENTAX Corporation

PENTAX Corporation is an innovative leader in the production of digital cameras, lenses, sport optics, mobility products, laser printers, scanners, Internet cameras and medical imaging devices. For more than 80 years, PENTAX technology has developed durable, reliable products that meet the needs of consumers and businesses. To learn more about PENTAX products and technologies, visit http://www.pentax.com.

About Alliacense

Alliacense is a TPL Group Enterprise executing best-in-class design and implementation of intellectual property licensing programs. As a cadre of IP licensing strategists, technology experts, and experienced business development /management executives, Alliacense focuses on expanding the awareness and value of TPL’s intellectual property portfolios. For more information, visit www.alliacense.com.

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Alliacense and Moore Microprocessor Patent (MMP) are trademarks of Technology Properties Limited (TPL). All other trademarks belong to their respective owners.

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