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For the Inventor, By the Inventor

Tokyo, Japan

Takao Marukame

USPTO Granted Patents = 66 

Average Co-Inventor Count = 4.5

ph-index = 6

Forward Citations = 162(Granted Patents)

Forward Citations (Not Self Cited) = 147(Oct 12, 2025)


Inventors with similar research interests:


Location History:

  • Fuchu, JP (2011 - 2013)
  • Yokohama, JP (2014)
  • Kanagawa, JP (2014 - 2015)
  • Chuo-ku, JP (2015)
  • Chuo Tokyo, JP (2022)
  • Tokyo, JP (2011 - 2023)
  • Chuo, JP (2017 - 2024)

Company Filing History:

goldMedal60 out of 52,711 
 
Kabushiki Kaisha Toshiba
 patents
silverMedal6 out of 2,955 
 
Toshiba Memory Corporation
 patents
bronzeMedal1 out of 9 
 
Toshiba Information Systems (japan) Corporation
 patents
where one patent can have more than one assignee

Years Active: 2011-2025

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66 patents (USPTO):
1. 12333421 - Synaptic circuit and neural networking apparatus (2025-06-17),
2. 12182693 - Memory device and neural network apparatus (2024-12-31),
3. 12093809 - Arithmetic device and neural network device (2024-09-17),
4. 12093807 - Neural network, method of control of neural network, and processor of neural network (2024-09-17),
5. 12073311 - Synaptic circuit and neural network apparatus (2024-08-27),
6. 11893476 - Processing apparatus and inference system (2024-02-06),
7. 11777006 - Nonvolatile memory device (2023-10-03),
8. 11651193 - Operation apparatus (2023-05-16),
9. 11636315 - Synapse circuit and arithmetic device (2023-04-25),
10. 11625579 - Spiking neural net work device and learning method of spiking neural network device (2023-04-11),
11. 11620501 - Neural network apparatus (2023-04-04),
12. 11586897 - Reinforcement learning system (2023-02-21),
13. 11586887 - Neural network apparatus (2023-02-21),
14. 11526738 - Processing apparatus and inference system (2022-12-13),
15. 11461617 - Neural network device (2022-10-04),

Title: Innovative Mind: Takao Marukame and His Pioneering Patents

Introduction

Takao Marukame, based in Tokyo, Japan, is a notable inventor recognized for his significant contributions to the fields of memory devices and neural networks. With a remarkable total of 65 patents to his name, Marukame's innovative approaches have positioned him at the forefront of technological advancement.

Latest Patents

Among his latest inventions is a memory device and neural network apparatus designed for efficiently storing weights in a neural network. This device incorporates an update circuit that modifies the difference between charges in two accumulation circuits, allowing for more precise weight output signals. Furthermore, the arithmetic device he devised includes multiple product-sum-operation circuits, which processes input signals and weight values to determine the most effective output signal based on the calculated product-sum-operation values.

Career Highlights

Takao Marukame has made significant strides in his career, having worked with prestigious organizations such as Kabushiki Kaisha Toshiba and Toshiba Memory Corporation. His experience within these leading companies has undoubtedly influenced his remarkable output of patents and innovative designs.

Collaborations

Throughout his career, Marukame has collaborated with talented individuals, including Yoshifumi Nishi and Tomoaki Inokuchi, whose combined expertise has propelled his initiatives forward and fostered innovative developments within their projects.

Conclusion

Takao Marukame exemplifies the spirit of innovation with his extensive portfolio of patents and his contributions to technology, specifically in the realms of memory devices and neural networks. His work continues to inspire future advancements, showcasing the endless possibilities within the fields of invention and innovation.

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