Company Filing History:

10 out of 28,577

Ricoh Company, Ltd.

patents

6 out of 10,264

Sumitomo Electric Industries, Limited

Ricoh Optical Industries Co., Ltd.

patents

where one patent can have more than one assignee

Years Active: 1985-2015

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21 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8964809 - Semiconductor optical integrated device (2015-02-24),

2. 8637329 - Method for producing semiconductor optical integrated device (2014-01-28),

3. 8618638 - Semiconductor optical modulator and method for manufacturing the same (2013-12-31),

4. 8563342 - Method of making semiconductor optical integrated device by alternately arranging spacers with integrated device arrays (2013-10-22),

5. 8124543 - Method for manufacturing semiconductor laser diode (2012-02-28),

6. 7835638 - Image recording apparatus, image recording method, and computer-readable recording medium (2010-11-16),

7. 7499640 - Image-recording apparatus (2009-03-03),

8. 7405421 - Optical integrated device (2008-07-29),

9. 7307368 - DC motor (2007-12-11),

10. 6628893 - DC motor rotation control apparatus (2003-09-30),

11. 6617816 - DC motor rotation detecting apparatus and DC motor rotation control apparatus (2003-09-09),

12. 6570350 - DC motor rotation detecting apparatus and DC motor rotation control apparatus (2003-05-27),

13. 5307110 - Pulse-controlled camera, method for setting control reference position (1994-04-26),

14. 5148212 - Flash control based on calculated required flash energy (1992-09-15),

15. 5041311 - Chemical vapor deposition method using a plasma self-cleaning (1991-08-20),

Title: Kenji Koyama - Pioneering Inventor from Yokohama

Introduction: Kenji Koyama is a renowned inventor hailing from Yokohama, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Kenji Koyama holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous dedication to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over two decades, Kenji Koyama has worked with leading tech companies in Japan, spearheading research and development projects that have led to significant technological breakthroughs.

Collaborations: Throughout his career, Kenji Koyama has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge sharing.

Conclusion: Kenji Koyama's relentless pursuit of innovation and his passion for creating technology that positively impacts society solidify his position as a trailblazing inventor in Yokohama and beyond.

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