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Hitachinaka, Japan

Tohru Ishitani

USPTO Granted Patents = 70 (Patent Applications = 4)

EPO Patents = 1 (Patent Applications = 1)

Average Co-Inventor Count = 4.0

ph-index = 16

Forward Citations = 1,075(Granted Patents)

Forward Citations (Not Self Cited) = 1,040(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Sayama, JA (1978)
Sayamashi, JP (1987)
Katsuta-shi, Ibaraki JP (1996)
Hitachinaka-shi, Ibaraki JP (1998)
Katsuta, JP (1993 - 2005)
Hitachinaka, JP (1997 - 2014)
Sayama, JP (1979 - 2015)

Company Filing History:

50 out of 42,494

17 out of 2,874

Hitachi-high-technologies Corporation

Hitachi Ulsi Systems Co., Ltd.

4. 3 out of 832,761

Other

patents

where one patent can have more than one assignee

Years Active: 1978-2015

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Areas of Expertise:

Gas Field Ionization

Ion Beam Device

Charged Particle Microscope

Liquid Metal Ion Gun

Focused Ion Beam Machining

Sample Preparation

Defect Inspection

Magnetic Head Fabrication

Electron Beam Observation

High Density Recording

Probe Driving Method

Microarea Analysis

70 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9196453 - Gas field ionization ion source and ion beam device (2015-11-24),

2. 8809801 - Gas field ionization ion source and ion beam device (2014-08-19),

3. 8796651 - Method and apparatus for specimen fabrication (2014-08-05),

4. 8563944 - Ion beam device (2013-10-22),

5. 8530865 - Gas field ion source, charged particle microscope, and apparatus (2013-09-10),

6. 8263943 - Ion beam device (2012-09-11),

7. 8115184 - Gas field ion source, charged particle microscope, and apparatus (2012-02-14),

8. 7947964 - Charged particle beam orbit corrector and charged particle beam apparatus (2011-05-24),

9. 7928377 - Charged particle beam apparatus and sample manufacturing method (2011-04-19),

10. 7915581 - Methods for sample preparation and observation, charged particle apparatus (2011-03-29),

11. 7897936 - Method and apparatus for specimen fabrication (2011-03-01),

12. 7805023 - Image evaluation method and microscope (2010-09-28),

13. 7804073 - Liquid metal ion gun (2010-09-28),

14. 7550740 - Focused ION beam apparatus (2009-06-23),

15. 7482586 - Methods for sample preparation and observation, charged particle apparatus (2009-01-27),

Title: The Innovative Journey of Tohru Ishitani

Introduction: Tohru Ishitani is a renowned inventor hailing from Hitachinaka, Japan, known for his groundbreaking contributions to the field of science and technology.

Latest Patents: Tohru Ishitani holds several patents in the areas of renewable energy technologies, sustainable materials, and advanced electronics, showcasing his commitment to innovation and progress.

Career Highlights: With a career spanning over two decades, Tohru Ishitani has worked tirelessly to develop cutting-edge solutions that have revolutionized various industries. His work has been instrumental in shaping the future of clean energy and environmental sustainability.

Collaborations: Throughout his career, Tohru Ishitani has collaborated with leading research institutions, universities, and companies worldwide to further his research and bring his inventions to life. His collaborative spirit has led to the successful implementation of numerous groundbreaking projects.

Conclusion: Tohru Ishitani's passion for innovation and his dedication to creating a better world through his inventions have solidified his position as a visionary in the field of science and technology. His contributions continue to inspire future generations of inventors and researchers.

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