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For the Inventor, By the Inventor

Kounan, Japan

Hitoshi Yoshida

This inventor holds 15 USPTO granted patents. Top assignee: Brother Kogyo Kabushiki-Kaisha. Active years: 1989-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hitoshi Yoshida. Retrieved from https://idiyas.com/inventor/hitoshi-yoshida-2t66p4o9

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 15

% Patents Active = 100.0

Average Co-Inventor Count = 1.9

ph-index = 7

Forward Citations = 109(Granted Patents)


Location History:

  • Kohnan, JP (1991 - 1994)
  • Kounan, JP (1992 - 2000)
  • Konan, JP (1989 - 2003)

Company Filing History:

goldMedal15 out of 17,897 
 
Brother Kogyo Kabushiki-Kaisha
 patents

Years Active: 1989-2003

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15 patents (USPTO):Explore Patents
1. 6568798 - Ink-jet print head having ink chambers defined by an entire thickness of a chamber sheet, and method of manufacturing the same (2003-05-27),
2. 6536879 - Laminated and bonded construction of thin plate parts (2003-03-25),
3. 6126278 - Ink jet head that makes ink droplet ejection velocity uniform within a (2000-10-03),
4. 6102507 - Ink Jet output apparatus (2000-08-15),
5. 6050678 - Ink jet head (2000-04-18),
6. 5943079 - Ink jet head (1999-08-24),
7. 5293478 - Graphical design processing apparatus for assessing and modifying design (1994-03-08),
8. 5150431 - Device for converting normal outline data into compressed outline data, (1992-09-22),
9. 5149213 - Noise reducing back stopper for an impact print head (1992-09-22),
10. 5105471 - Apparatus for converting character outline data into dot data, having (1992-04-14),
11. 5086481 - Apparatus for converting outline data into dot data, having means for (1992-02-04),
12. 5073956 - Apparatus for converting image outline data into dot data representative (1991-12-17),
13. 5050228 - Apparatus for converting image outline data into dot data representative (1991-09-17),
14. 5018217 - Data converting apparatus having means for changing ornamental stroke (1991-05-21),
15. 4814808 - Developing apparatus for photo/pressure sensitive sheet (1989-03-21),

Title: Hitoshi Yoshida: Innovator in Ink-Jet Technology

Introduction

Hitoshi Yoshida is a prominent inventor based in Kohnan, Japan. He has made significant contributions to the field of ink-jet technology, holding a total of 15 patents. His innovative designs and methods have advanced the efficiency and precision of ink-jet print heads.

Latest Patents

Yoshida's latest patents include a groundbreaking design for an ink-jet print head that features ink chambers defined by the entire thickness of a chamber sheet. This design utilizes a cavity plate that consists of a base material and a chamber sheet. The ink channel array, which constitutes the ink chambers, is created through the chamber sheet using a wire electric discharge machine. Additionally, an ink reservoir is formed on the base material, also through this advanced manufacturing technique. The bonding of the chamber sheet and base material ensures high precision in the production process, while the nozzles for ink ejection can be created on a nozzle sheet or directly on the chamber sheet.

Another notable patent involves a laminated and bonded construction of thin plate parts. In this design, a cavity plate is constructed by laminating multiple thin plates with ink passages using an adhesive. The design includes escape grooves and holes that guide any remaining adhesive away from the ink passages, ensuring that air trapped in the adhesive is discharged effectively. This innovative approach allows for a firm bond between the thin plates while maintaining the integrity of the ink passages.

Career Highlights

Hitoshi Yoshida has dedicated his career to advancing ink-jet technology. He works at Brother Industries, Ltd., a company known for its commitment to innovation in printing solutions. His work has not only improved the functionality of ink-jet print heads but has also contributed to reducing production costs.

Collaborations

Yoshida collaborates with talented coworkers, including Naoyuki Kawamoto and Takahiro Kanegae. Their combined expertise fosters a creative environment that drives innovation in their projects.

Conclusion

Hitoshi Yoshida's contributions to ink-jet technology exemplify the impact of innovative thinking in engineering. His patents reflect a commitment to precision and efficiency, making significant strides in the printing industry.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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