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For the Inventor, By the Inventor

Atsugi, Japan

Fumio Murooka

USPTO Granted Patents = 18

Average Co-Inventor Count = 3.6

ph-index = 10

Forward Citations = 250(Granted Patents)


Location History:

  • Kanagawa, JP (1991 - 2007)
  • Atsugi, JP (1997 - 2008)

Company Filing History:

goldMedal18 out of 90,753 
 
Canon Kabushiki Kaisha
 patents

Years Active: 1991-2008

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18 patents (USPTO):Explore Patents
1. 7350891 - Liquid discharge head (2008-04-01),
2. 7250113 - Method for manufacturing liquid ejection head (2007-07-31),
3. 6520611 - Print head and printer apparatus using the same (2003-02-18),
4. 6471339 - Substrate for thermal recording head, ink jet recording head using the substrate, recording apparatus with the recording head, and method of driving recording head (2002-10-29),
5. 6467884 - Substrate unit for liquid discharging head, method for producing the same, liquid discharging head, cartridge, and image forming apparatus (2002-10-22),
6. 6464320 - Recording head and recording apparatus using the same (2002-10-15),
7. 6439690 - Element substrate having connecting wiring between heat generating resistor elements and ink jet recording apparatus (2002-08-27),
8. 6257695 - Substrate for thermal recording head, ink jet recording head using the substrate, recording apparatus with the recording head, and method of driving record head (2001-07-10),
9. 6243109 - Print head with driving, transmission and control devices on single substrate (2001-06-05),
10. 6224195 - Recording head and recording apparatus using the same (2001-05-01),
11. 5943070 - Substrate for thermal recording head, ink jet recording head using the (1999-08-24),
12. 5880762 - Ink jet head with preliminary heater element (1999-03-09),
13. 5877784 - Printhead, printing apparatus and printing method using printhead (1999-03-02),
14. 5731828 - Ink jet head, ink jet head cartridge and ink jet apparatus (1998-03-24),
15. 5614439 - Method of making a planar wiring in an insulated groove using (1997-03-25),

Title: The Inventive World of Fumio Murooka

Introduction

Fumio Murooka, a prolific inventor based in Atsugi, JP, has made significant contributions to the field of liquid discharge technology with an impressive portfolio of 18 patents. His innovative solutions have revolutionized liquid ejection systems, setting new standards in the industry.

Latest Patents

One of Fumio Murooka's latest patents focuses on a Liquid Discharge Head, featuring a sophisticated design with a heater resistor and a switch circuit for precise control of liquid heating and bubble generation. The incorporation of a detection circuit and a switch control circuit ensures efficient operation and enhanced performance.

Another recent patent by Fumio Murooka showcases a Method for Manufacturing a Liquid Ejection Head. This method involves advanced techniques such as forming sacrificial layers and anti-etching layers to create a liquid supply port within the substrate, a process that underscores his commitment to innovation and excellence.

Career Highlights

Fumio Murooka is a distinguished member of the renowned company Canon Kabushiki Kaisha, where his inventive spirit and technical expertise have flourished. Through his groundbreaking work, he has elevated the company's reputation as a leader in cutting-edge technology and product development.

Collaborations

In his professional journey, Fumio Murooka has collaborated closely with talented individuals such as Hiroyuki Maru and Masaaki Izumida. These collaborations have been instrumental in fostering creativity, sharing knowledge, and driving collective innovation in the dynamic realm of liquid discharge technology.

Conclusion

In conclusion, Fumio Murooka stands as a visionary inventor whose ingenuity and dedication have left an indelible mark on the world of liquid ejection systems. His relentless pursuit of excellence and commitment to advancing technological boundaries continue to inspire and shape the future of innovation in the industry.

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