Location History:
- Cupertino, CA (US) (1991)
- Santa Clara, CA (US) (1990 - 1993)
Company Filing History:
2 out of 2 
1 out of 233 
1 out of 28,577 
Years Active: 1990-1993
Title: Koichi Ejiri: Innovator in Text Classification and Imaging Technology
Introduction
Koichi Ejiri is a notable inventor based in Santa Clara, CA (US). He has made significant contributions to the fields of text classification and imaging technology. With a total of 3 patents, his work reflects a commitment to advancing technological solutions.
Latest Patents
Ejiri's latest patents include a method and apparatus for classifying text. This invention provides a systematic approach to text classification using two constants derived from analyzing the text. The first constant, G, classifies text based on constraints, defined by the equation G=log (N/L)/ {log(N)-1}, where N represents the number of words and L denotes the number of different words in the text. The second constant, R, serves as the correlation coefficient between word length and the logarithm scaled rank order of word frequency. These constants enable the classification of English text into categories such as computer language, technical manuals, and texts written by both native and non-native speakers. Another significant patent is a high-quality image scanner that processes multiple scanned images into a composite image with a large dynamic range. This scanner identifies maximum local similarity between the scanned images, enhancing the quality of the final output.
Career Highlights
Throughout his career, Koichi Ejiri has worked with prominent companies, including Ricoh Corporation and Ricoh Company, Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas.
Collaborations
Ejiri has collaborated with talented individuals such as Tina L. Jeng and Rithy K. Roth. These partnerships have contributed to the success of his projects and inventions.
Conclusion
Koichi Ejiri's contributions to text classification and imaging technology demonstrate his innovative spirit and dedication to advancing these fields. His patents reflect a deep understanding of technology and its applications, making him a significant figure in the world of invention.