Changes

'''Note''': Below mentioned assignees patents added together and presented as one in above graph* SUMITOMO LIFE INSURANCE and MITSUI SUMITOMO INSURANCE is presented as MITSUI SUMITOMO LIFE INSURANCE* GE MORTGAGE HOLDINGS is merged with and GE FINANCIAL ASSURANCE HOLDING is presented as GE FINANCIAL ASSURANCE HOLDING* NICHIDO FIRE & MARINE INSURANCE, TOKIO MARINE AND FIRE INSURANCE, TOKIO MARINE & NICHIDO LIFE INSURANCE and , TOKIO MARINE & NICHIDO FIRE INSURANCE are merged with and TOKIO MARINE & FIRE INSURANCE is presented as TOKIO MARINE & FIRE INSURANCE.* NIPPONKOA INSURANCE and , NIPPON ELECTRIC are merged with and NIPPON LIFE INSURANCE is presented as NIPPON LIFE INSURANCE.