Shigeru Morokawa

This inventor holds 65 USPTO granted patents and 2 EPO patents, primarily in Liquid Crystal Displays (CPC class 58 2). Top assignees: Citizen Watch Company, Ltd., Citizen Holdings Company, Ltd., Rhythm Watch Co., Ltd.. Active years: 1976-2008.

USPTO Granted Patents = 65

% Patents Active = 95.4

EPO Patents = 2

Average Co-Inventor Count = 2.2

ph-index = 18

Forward Citations = 1,062(Granted Patents)

Forward Citations (Not Self Cited) = 1,009(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Tokorozawa, J (1976)
Higashiyamato, J (1976)
Higashiyamato, Tokyo, JA (1977)
Higashiyamato, JA (1976 - 1978)
Tokorozawa, JA (1976 - 1978)
Saitama, JP (1982)
Tanashi, JP (1984)
Tokorozawa, JP (1978 - 2000)
Higashiyamoto, JP (2003)
Higashiyamato, JP (1978 - 2006)
Tokyo, JP (1978 - 2008)

Company Filing History:

61 out of 2,004

Citizen Watch Company, Ltd.

patents

1 out of 450

Citizen Holdings Company, Ltd.

patents

1 out of 73

Rhythm Watch Co., Ltd.

patents

4. 3 out of 834,411

Other

patents

where one patent can have more than one assignee

Years Active: 1976-2008

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Areas of Expertise:

Liquid Crystal Display

Electronic Timepiece

Voltage Conversion

Optical Device

Integrated Circuit

Pace Timing

FET Quartz Oscillators

Matrix Driving Method

Driving System

Timer

Power Supply Circuit

Ultrabroad-band Device

65 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7436737 - Electric timepiece (2008-10-14),

2. 7084976 - Concentration measuring instrument (2006-08-01),

3. 6999058 - Power supply circuit for driving liquid crystal display device (2006-02-14),

4. 6894952 - Timer of electric timepiece (2005-05-17),

5. 6826209 - Ultrabroad-band variable-wavelength wavelength-multiplexed pulse waveform shaping device (2004-11-30),

6. 6583506 - Semiconductor device (2003-06-24),

7. 6515645 - Liquid crystal display apparatus (2003-02-04),

8. 6301198 - Electronic timepiece (2001-10-09),

9. 6023252 - Liquid crystal display device (2000-02-08),

10. 5815233 - Optical device containing a liquid crystal element for changing optical (1998-09-29),

11. 5654782 - Liquid crystal optical modulator device with each electrode width (1997-08-05),

12. 5101116 - Multi-level voltage generator to drive LCD (1992-03-31),

13. 4843252 - Selecting electrode drive circuit for a matrix liquid crystal display (1989-06-27),

14. 4824213 - Liquid crystal display having opaque portions on the electrodes (1989-04-25),

15. 4679043 - Method of driving liquid crystal matrix display (1987-07-07),

Title: The Innovative Journey of Shigeru Morokawa

Introduction:

Shigeru Morokawa, a distinguished inventor hailing from Higashiyamato, Japan, has made significant contributions to the field of technology through his groundbreaking inventions and patents.

Latest Patents:

Shigeru Morokawa's latest patents focus on advancements in robotics and artificial intelligence, showcasing his commitment to pushing the boundaries of innovation in these fields.

Career Highlights:

With a career spanning over two decades, Shigeru Morokawa has established himself as a visionary inventor with a keen eye for identifying technological gaps and creating solutions to address them. His innovative spirit has led to the development of several cutting-edge technologies that have revolutionized the industry.

Collaborations:

Throughout his career, Shigeru Morokawa has collaborated with leading research institutions and tech companies to bring his inventions to life. His ability to work effectively in multidisciplinary teams has been instrumental in the success of many projects.

Conclusion:

In conclusion, Shigeru Morokawa's relentless pursuit of innovation and his passion for creating technology that makes a difference have solidified his position as a respected inventor in the global tech community. His contributions continue to inspire future generations of inventors to push the boundaries of what is possible.