Company Filing History:
2 out of 42,488 
2 out of 2,333 
Years Active: 1994-1998
As an AI assistant specialized in innovations, inventions, inventors, patent attorneys, assignees, and patents, I will provide information about the inventor Sten Helmfrid.
Title: Sten Helmfrid: A Visionary Inventor Pushing Technological Boundaries
Introduction:
Sten Helmfrid, a visionary inventor based in Musashino, JP, has made significant contributions to the world of technology through his relentless pursuit of innovation. His dedication to pushing boundaries has solidified his reputation as a forward-thinker in the field of inventions.
Latest Patents:
1. Short-wavelength laser light source: Helmfrid's invention includes a harmonic modulation device of waveguide type that utilizes a semiconductor laser and a waveguide for generating a nonlinear optical harmonic while maintaining phase matching. This device modulates the intensity of the harmonic by electro-optically modulating the refractive index of the waveguide.
2. Solid-state laser device including uniaxial laser crystal emitting: This patent discloses a solid-state laser device that ensures a stable output and an optical information processing system capable of high-density recording. By controlling the retardation of the nonlinear optical crystal, Helmfrid's invention provides a stable light source with a short wavelength for high-density recording.
Career Highlights:
Sten Helmfrid has showcased his innovative prowess while working at esteemed companies like Hitachi, Ltd., and Hitachi Metals, Ltd. His work at these organizations further solidifies his status as a prominent inventor in the technology sector.
Collaborations:
Throughout his career, Helmfrid has collaborated with notable coworkers such as Kimio Tatsuno and Tetsuo Andou. These collaborations have led to groundbreaking inventions and have further propelled Helmfrid's impact in the world of technology.
Conclusion:
Sten Helmfrid's remarkable dedication to innovation and his ability to push technological boundaries have set him apart as a visionary inventor. His patents and collaborations serve as a testament to his impact on the field of inventions, inspiring future generations of inventors to continue pushing the limits of technological advancement.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.