Company Filing History:
9 out of 15,844 
3 out of 21,351 
Years Active: 2004-2025
Title: Chikara Watatani: Innovator in Semiconductor Technology
Introduction
Chikara Watatani is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 12 patents. His work focuses on advancements in semiconductor laser elements and devices, showcasing his expertise and innovative spirit.
Latest Patents
Watatani's latest patents include a semiconductor laser element and a method for manufacturing the same. The semiconductor laser device features semiconductor layers that comprise an n-type cladding layer formed on a surface of an n-type GaAs substrate. Active layers are formed on the surfaces of the n-type cladding layer, with p-type cladding layers and p-type contact layers formed on the active layers. The design includes insulating films covering the surfaces of the semiconductor layers, with openings on the surfaces of the p-type contact layer. Conductive layers are connected to the p-type contact layers through these openings, enhancing the device's functionality. Additionally, his method of manufacturing a semiconductor device involves forming electrodes on a semiconductor substrate and creating a cleavage-inducing pattern to facilitate the cleaving process.
Career Highlights
Throughout his career, Chikara Watatani has worked with notable companies such as Mitsubishi Electric Corporation and Mitsubishi Denki Kabushiki Kaisha. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in semiconductor technology.
Collaborations
Watatani has collaborated with esteemed colleagues, including Takashi Nagira and Takeshi Yamatoya. These partnerships have fostered a creative environment that has led to significant advancements in their respective fields.
Conclusion
Chikara Watatani's contributions to semiconductor technology are noteworthy, with a solid portfolio of patents that reflect his innovative approach. His work continues to influence the industry, paving the way for future advancements in semiconductor devices.
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.